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Physics-

General

Easy

Question

A solid cylinder of mass M and R is mounted on a frictionless horizontal axle so that it can freely rotate about this axis. A string of negligible mass is wrapped round the cylinder and a body of mass m is hung from the string as shown in figure the mass is released from rest then A wheel having moment of inertia $2 text end text k g M to the power of 2 end exponent$ about its vertical axis, rotates at the rate of 60rpm about this axis. The torque which can stop the wheels rotation in one minute will be..

$\frac{π}{15} N m$
$\frac{π}{18} N m$
$\frac{2 π}{15} N - m$
$\frac{π}{12} N m$

The correct answer is: $fraction numerator pi over denominator 15 end fraction N m$

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A solid cylinder of mass M and R is mounted on a frictionless horizontal axle so that it can freely rotate about this axis. A string of negligible mass is wrapped round the cylinder and a body of mass m is hung from the string as shown in figure the mass is released from rest then A thin uniform rod AB of mass M and length L is hinged at one end A to the horizontal floor. Initially it stands vertically. It is allowed to fall freely on the floor in the vertical plane. The angular velocity of the rod when its end B strikes the floor is

A solid cylinder of mass M and R is mounted on a frictionless horizontal axle so that it can freely rotate about this axis. A string of negligible mass is wrapped round the cylinder and a body of mass m is hung from the string as shown in figure the mass is released from rest then A thin uniform rod AB of mass M and length L is hinged at one end A to the horizontal floor. Initially it stands vertically. It is allowed to fall freely on the floor in the vertical plane. The angular velocity of the rod when its end B strikes the floor is

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A small object of uniform density rolls up a curved surface with initial velocity 'u'. It reaches up to maximum height of $3 v to the power of 2 end exponent divided by 4 g$ with respect to initial position then the object is

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A disc of mass M and radius R is rolling with angular speed w on a horizontal plane, as shown in figure. The magnitude of angular momentum of the disc about the origin O is

A disc of mass M and radius R is rolling with angular speed w on a horizontal plane, as shown in figure. The magnitude of angular momentum of the disc about the origin O is

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A light rod carries three equal masses A, B and C as shown in the figure the velocity of B in vertical position of rod if it is released from horizontal position as shown in the figure is .....

A light rod carries three equal masses A, B and C as shown in the figure the velocity of B in vertical position of rod if it is released from horizontal position as shown in the figure is .....

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$A with not stretchy rightwards arrow on top cross times B with not stretchy rightwards arrow on top equals C with not stretchy bar on top$ , Then $Error converting from MathML to accessible text.$ is perprndicular to

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Linear momentum of a particle is $left parenthesis 3 1 with not stretchy hat on top plus 2 ȷ with not stretchy bar on top minus k with not stretchy hat on top right parenthesis kgms to the power of negative 1 end exponent$ Find its magnitude

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$A with not stretchy rightwards arrow on top equals 2 ı with not stretchy hat on top plus 2 ȷ with not stretchy hat on top minus k with not stretchy hat on top$ and $Error converting from MathML to accessible text.$ Find $Error converting from MathML to accessible text.$

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What is the angle between $Q with not stretchy bar on top$ and the resultant of $straight P with rightwards arrow on top plus straight Q with rightwards arrow on top$ and $Error converting from MathML to accessible text.$

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$A with not stretchy rightwards arrow on top equals 3 ı with not stretchy hat on top plus 2 ȷ with not stretchy hat on top minus 5 k with not stretchy hat on top$ and $Error converting from MathML to accessible text.$ Find $Error converting from MathML to accessible text.$

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Out of the following pairs of forces, the resultant of which can not be 18 N

Out of the following pairs of forces, the resultant of which can not be 18 N

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If $straight A with rightwards arrow on top equals 3 straight i with not stretchy hat on top plus 4 straight j with not stretchy hat on top plus 9 straight k with not stretchy hat on top$ is multiplied by 3, then the component of the new vector along z directions is

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1) $49 to the power of n plus 16 n minus 1$ is divisible by $A$ for all $n element of N$
2) $3 to the power of 2 n end exponent plus 7$ is divisible by $B$ for all $n element of N$
3) $4 to the power of n minus 3 n minus 1$ is divisible by $C$ $n element of N$
4) $3 to the power of 3 n end exponent minus 26 n minus 1$ is divisible by $D$ for all $n element of N$ then the increasing order of $A comma B comma C comma D$ is

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2) $3 to the power of 2 n end exponent plus 7$ is divisible by $B$ for all $n element of N$
3) $4 to the power of n minus 3 n minus 1$ is divisible by $C$ $n element of N$
4) $3 to the power of 3 n end exponent minus 26 n minus 1$ is divisible by $D$ for all $n element of N$ then the increasing order of $A comma B comma C comma D$ is

Magnitudes of $Error converting from MathML to accessible text.$ and $Error converting from MathML to accessible text.$ are 41,40 and 9 respectively, $Error converting from MathML to accessible text.$ Find the angle between $straight A with rightwards arrow on top$ and $Error converting from MathML to accessible text.$

Magnitudes of $Error converting from MathML to accessible text.$ and $Error converting from MathML to accessible text.$ are 41,40 and 9 respectively, $Error converting from MathML to accessible text.$ Find the angle between $straight A with rightwards arrow on top$ and $Error converting from MathML to accessible text.$

The sum of $straight P with rightwards arrow on top$ and $Error converting from MathML to accessible text.$ is at right angles to their difference then

The sum of $straight P with rightwards arrow on top$ and $Error converting from MathML to accessible text.$ is at right angles to their difference then

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