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Physics-

General

Easy

Question

A block of mass m is given an initial downward velocity $v subscript 0 end subscript$ and left on an inclined plane (coefficient of friction $0.7$ ). The block will

Continue to move down the plane with constant velocity $v_{0}$
Accelerate downward
Decelerate and come to rest
First decelerated downward and then accelerate upward

The correct answer is: Decelerate and come to rest

Related Questions to study

A blocks of mass M is sliding down the plane. Coefficient of static friction is $mu subscript s end subscript$ and kinetic friction is $mu subscript k end subscript comma$ Then friction force acting on the block is

A blocks of mass M is sliding down the plane. Coefficient of static friction is $mu subscript s end subscript$ and kinetic friction is $mu subscript k end subscript comma$ Then friction force acting on the block is

physics-General

A horizontal force $F equals 20 N$ is applied on a block of mass 2 kg placed on rough inclined plane with coefficient of friction $mu equals 0.2$ as shown, then the acceleration of block is $open parentheses tan invisible function application 3 7 degree equals fraction numerator 3 over denominator 4 end fraction comma g equals 10 m divided by s to the power of 2 end exponent close parentheses$

A horizontal force $F equals 20 N$ is applied on a block of mass 2 kg placed on rough inclined plane with coefficient of friction $mu equals 0.2$ as shown, then the acceleration of block is $open parentheses tan invisible function application 3 7 degree equals fraction numerator 3 over denominator 4 end fraction comma g equals 10 m divided by s to the power of 2 end exponent close parentheses$

physics-General

A weightless string passes through a slit over a pulley. The slit offers frictional force f to the string. The string carries two weights having masses $m subscript 1 end subscript$ and $m subscript 2 end subscript$ where $m subscript 2 end subscript greater than m subscript 1 end subscript.$ then acceleration of the weights is

A weightless string passes through a slit over a pulley. The slit offers frictional force f to the string. The string carries two weights having masses $m subscript 1 end subscript$ and $m subscript 2 end subscript$ where $m subscript 2 end subscript greater than m subscript 1 end subscript.$ then acceleration of the weights is

physics-General

parallel

Consider the system shown in figure. The wall is smooth, but the surface of blocks A and B in
contact are rough. The friction on B due to A in equilibrium is

Consider the system shown in figure. The wall is smooth, but the surface of blocks A and B in
contact are rough. The friction on B due to A in equilibrium is

physics-General

Two genes R and Y located very close on the chromosomal linkage map of maize plant. When RRYY and rryy genotypes are hybridized, the F₂ segregation will show

Two genes R and Y located very close on the chromosomal linkage map of maize plant. When RRYY and rryy genotypes are hybridized, the F₂ segregation will show

Assertion : The locus of the centre of a circle which touches the circles $open vertical bar z minus z subscript 1 end subscript close vertical bar equals a$ and $open vertical bar z minus z subscript 2 end subscript close vertical bar equals b$ externally (z, $z subscript 1 end subscript$ and $z subscript 2 end subscript$ are complex numbers) will be hyperbola
Reason : $open vertical bar z minus z subscript 1 end subscript close vertical bar minus open vertical bar z minus z subscript 2 end subscript close vertical bar less than open vertical bar z subscript 2 end subscript minus z subscript 1 end subscript close vertical bar$
$not stretchy rightwards double arrow$ z lies on hyperbola

Assertion : The locus of the centre of a circle which touches the circles $open vertical bar z minus z subscript 1 end subscript close vertical bar equals a$ and $open vertical bar z minus z subscript 2 end subscript close vertical bar equals b$ externally (z, $z subscript 1 end subscript$ and $z subscript 2 end subscript$ are complex numbers) will be hyperbola
Reason : $open vertical bar z minus z subscript 1 end subscript close vertical bar minus open vertical bar z minus z subscript 2 end subscript close vertical bar less than open vertical bar z subscript 2 end subscript minus z subscript 1 end subscript close vertical bar$
$not stretchy rightwards double arrow$ z lies on hyperbola

parallel

Assertion : Consider an ellipse having its foci at A( $z subscript 1 end subscript$ ) and B( $z subscript 2 end subscript$ ) in the Argand plane. If the eccentricity of the ellipse be 'e' and it is known that origin is an interior point of the ellipse then
$e element of$ $open parentheses negative fraction numerator vertical line z subscript 1 end subscript plus z subscript 2 end subscript vertical line over denominator vertical line z subscript 1 end subscript vertical line plus vertical line z subscript 2 end subscript vertical line end fraction comma fraction numerator vertical line z subscript 1 end subscript plus z subscript 2 end subscript vertical line over denominator vertical line z subscript 1 end subscript vertical line plus vertical line z subscript 2 end subscript vertical line end fraction close parentheses$
Reason : If $Z subscript 0 end subscript$ is the point interior to curve $open vertical bar z minus z subscript 1 end subscript close vertical bar plus open vertical bar z minus z subscript 2 end subscript close vertical bar equals lambda rightwards double arrow open vertical bar z subscript 0 end subscript minus z subscript 1 end subscript close vertical bar plus open vertical bar z subscript 0 end subscript minus z subscript 2 end subscript close vertical bar less than lambda$

Assertion : Consider an ellipse having its foci at A( $z subscript 1 end subscript$ ) and B( $z subscript 2 end subscript$ ) in the Argand plane. If the eccentricity of the ellipse be 'e' and it is known that origin is an interior point of the ellipse then
$e element of$ $open parentheses negative fraction numerator vertical line z subscript 1 end subscript plus z subscript 2 end subscript vertical line over denominator vertical line z subscript 1 end subscript vertical line plus vertical line z subscript 2 end subscript vertical line end fraction comma fraction numerator vertical line z subscript 1 end subscript plus z subscript 2 end subscript vertical line over denominator vertical line z subscript 1 end subscript vertical line plus vertical line z subscript 2 end subscript vertical line end fraction close parentheses$
Reason : If $Z subscript 0 end subscript$ is the point interior to curve $open vertical bar z minus z subscript 1 end subscript close vertical bar plus open vertical bar z minus z subscript 2 end subscript close vertical bar equals lambda rightwards double arrow open vertical bar z subscript 0 end subscript minus z subscript 1 end subscript close vertical bar plus open vertical bar z subscript 0 end subscript minus z subscript 2 end subscript close vertical bar less than lambda$

If $alpha$ and $beta$ are different complex numbers with | $beta$ | = 1, then $open vertical bar fraction numerator beta minus alpha over denominator 1 minus stack alpha with ̄ on top beta end fraction close vertical bar$ is equal to

If $alpha$ and $beta$ are different complex numbers with | $beta$ | = 1, then $open vertical bar fraction numerator beta minus alpha over denominator 1 minus stack alpha with ̄ on top beta end fraction close vertical bar$ is equal to

What is the maximum value of the force F such that the block shown in the arrangement does not move? $open parentheses g equals 10 m divided by s to the power of 2 end exponent close parentheses$

What is the maximum value of the force F such that the block shown in the arrangement does not move? $open parentheses g equals 10 m divided by s to the power of 2 end exponent close parentheses$

physics-General

parallel

A block of mass $m subscript 1 end subscript$ rests on a rough horizontal plane relative to which the coefficient of friction is $mu.$ . A light string attached to the body passes over a light pulley and carries at its other end a mass $m subscript 2 end subscript$ and the system just begins to move. The value of $mu$ .

A block of mass $m subscript 1 end subscript$ rests on a rough horizontal plane relative to which the coefficient of friction is $mu.$ . A light string attached to the body passes over a light pulley and carries at its other end a mass $m subscript 2 end subscript$ and the system just begins to move. The value of $mu$ .

physics-General

With what acceleration 'a' should the box of figure moving up so that blocks of mass M exerts a force 7Mg/4 on the floor of the box?

With what acceleration 'a' should the box of figure moving up so that blocks of mass M exerts a force 7Mg/4 on the floor of the box?

physics-General

If $alpha$ and $beta$ are different complex numbers with
| $beta$ | = 1, then $open vertical bar fraction numerator beta minus alpha over denominator 1 minus alpha beta end fraction close vertical bar$ is equal to

If $alpha$ and $beta$ are different complex numbers with
| $beta$ | = 1, then $open vertical bar fraction numerator beta minus alpha over denominator 1 minus alpha beta end fraction close vertical bar$ is equal to

parallel

Let z₁ and z₂ be complex numbers, then $open vertical bar z subscript 1 end subscript plus z subscript 2 end subscript close vertical bar to the power of 2 end exponent plus open vertical bar z subscript 1 end subscript minus z subscript 2 end subscript close vertical bar to the power of 2 end exponent$ is equal to

Let z₁ and z₂ be complex numbers, then $open vertical bar z subscript 1 end subscript plus z subscript 2 end subscript close vertical bar to the power of 2 end exponent plus open vertical bar z subscript 1 end subscript minus z subscript 2 end subscript close vertical bar to the power of 2 end exponent$ is equal to

Let z = 1 – t + i $square root of t to the power of 2 end exponent plus t plus 2 end root$ , where t is a real parameter. The locus of z in the Argand plane is

Let z = 1 – t + i $square root of t to the power of 2 end exponent plus t plus 2 end root$ , where t is a real parameter. The locus of z in the Argand plane is

For all complex number z₁, z₂ satisfying $open vertical bar z subscript 1 end subscript close vertical bar$ = 12 and $open vertical bar z subscript 2 end subscript minus 3 minus 4 i close vertical bar equals 5$ , the minimum value of $open vertical bar z subscript 1 end subscript minus z subscript 2 end subscript close vertical bar$ is -

For all complex number z₁, z₂ satisfying $open vertical bar z subscript 1 end subscript close vertical bar$ = 12 and $open vertical bar z subscript 2 end subscript minus 3 minus 4 i close vertical bar equals 5$ , the minimum value of $open vertical bar z subscript 1 end subscript minus z subscript 2 end subscript close vertical bar$ is -

parallel

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