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Physics-

General

Easy

Question

A ball of mass 1 kg is attached to an inextensible string. The ball is released from the position shown in figure. The impulse imparted by the string to the ball immediately after the string becomes taut is

$2 \sqrt{g}$
$4 \sqrt{g}$
$3 \sqrt{g}$
$2 \sqrt{2 g}$

The correct answer is: $2 square root of 2 g end root$

Related Questions to study

A block of mass 2 kg is moving on a frictionless horizontal surface with a velocity of 1 m/s towards another block of equal mass kept at rest. The spring constant of the spring fixed at one end is 100 N/m. Find the maximum compression of the spring.

A block of mass 2 kg is moving on a frictionless horizontal surface with a velocity of 1 m/s towards another block of equal mass kept at rest. The spring constant of the spring fixed at one end is 100 N/m. Find the maximum compression of the spring.

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A body of mass 3 kg is acted on by a force which varies as shown in the graph below. The momentum acquired is given by (given initial momentum $equals 0$ )

A body of mass 3 kg is acted on by a force which varies as shown in the graph below. The momentum acquired is given by (given initial momentum $equals 0$ )

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A uniform rod of length $L$ and mass $M$ is pivoted at the centre. Its two ends are attached to two springs of equal spring constant $k.$ The springs are fixed to rigid supports as shown in the figure, and the rod is free to oscillate in the horizontal plane. The rod is gently pushed through a small angle $theta$ in one direction and released. The frequency of oscillation is

A uniform rod of length $L$ and mass $M$ is pivoted at the centre. Its two ends are attached to two springs of equal spring constant $k.$ The springs are fixed to rigid supports as shown in the figure, and the rod is free to oscillate in the horizontal plane. The rod is gently pushed through a small angle $theta$ in one direction and released. The frequency of oscillation is

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The frequency of oscillation of the springs shown in the figure will be

The frequency of oscillation of the springs shown in the figure will be

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The mass M shown in the figure oscillates in simple harmonic motion with amplitude A. The amplitude of the point P is

The mass M shown in the figure oscillates in simple harmonic motion with amplitude A. The amplitude of the point P is

physics-General

A small block is connected to one end of a massless spring of un-stretched length $4.9 m$ . The other end of the spring (see the figure) is fixed. The system lies on a horizontal frictionless surface. The block is stretched by $0.2 m$ and released from rest at $t equals 0.$ It then executes simple harmonic motion with angular frequency $omega equals fraction numerator pi over denominator 3 end fraction r a d divided by s.$ Simultaneously at $t equals 0 comma$ a small pebble is projected with speed $v$ frompoint $P$ is at angle of $45 degree$ as shown in the figure. Point $P$ is at a horizontal distance of $10 blank m$ from $O.$ If the pebble hits the block at $t equals 1 s comma$ the value of $v$ is (take $g equals 10 m divided by s to the power of 2 end exponent$ )

A small block is connected to one end of a massless spring of un-stretched length $4.9 m$ . The other end of the spring (see the figure) is fixed. The system lies on a horizontal frictionless surface. The block is stretched by $0.2 m$ and released from rest at $t equals 0.$ It then executes simple harmonic motion with angular frequency $omega equals fraction numerator pi over denominator 3 end fraction r a d divided by s.$ Simultaneously at $t equals 0 comma$ a small pebble is projected with speed $v$ frompoint $P$ is at angle of $45 degree$ as shown in the figure. Point $P$ is at a horizontal distance of $10 blank m$ from $O.$ If the pebble hits the block at $t equals 1 s comma$ the value of $v$ is (take $g equals 10 m divided by s to the power of 2 end exponent$ )

physics-General

parallel

A small block is connected to one end of a massless spring of un-stretched length $4.9 m$ . The other end of the spring (see the figure) is fixed. The system lies on a horizontal frictionless surface. The block is stretched by $0.2 m$ and released from rest at $t equals 0.$ It then executes simple harmonic motion with angular frequency $omega equals fraction numerator pi over denominator 3 end fraction r a d divided by s.$ Simultaneously at $t equals 0 comma$ a small pebble is projected with speed $v$ frompoint $P$ is at angle of $45 degree$ as shown in the figure. Point $P$ is at a horizontal distance of $10 blank m$ from $O.$ If the pebble hits the block at $t equals 1 s comma$ the value of $v$ is (take $g equals 10 m divided by s to the power of 2 end exponent$ )

A small block is connected to one end of a massless spring of un-stretched length $4.9 m$ . The other end of the spring (see the figure) is fixed. The system lies on a horizontal frictionless surface. The block is stretched by $0.2 m$ and released from rest at $t equals 0.$ It then executes simple harmonic motion with angular frequency $omega equals fraction numerator pi over denominator 3 end fraction r a d divided by s.$ Simultaneously at $t equals 0 comma$ a small pebble is projected with speed $v$ frompoint $P$ is at angle of $45 degree$ as shown in the figure. Point $P$ is at a horizontal distance of $10 blank m$ from $O.$ If the pebble hits the block at $t equals 1 s comma$ the value of $v$ is (take $g equals 10 m divided by s to the power of 2 end exponent$ )

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Ball 1 collides with another identical ball 2 at rest as shown in figure. For what value of coefficient of restitution e, the velocity of second ball becomes two times that of 1 after collision

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Let f : R → R be a function defined by f(x) = $\frac{e^{\cos x} - e^{- \sin x}}{e^{\sin x} + e^{- \sin x}}$ , then

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The variation of potential energy of harmonic oscillator is as shown in figure. The spring constant is

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