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JEE Advanced 2020 Concept Recapitulation Test 4 Paper 1

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Question : 8

Total: 54

One end of a spring of force constant 25N∕m is connected with a block of mass 1kg and the other end is fixed to a vertical wall. The block is given velocity 6m∕s towards the wall (when the spring is in natural length) on a horizontal rough surface having coefficient of friction 0.55. Then:

The compression in the spring when the block stops momentarily for the l‌st ‌ time is 1m.
The compression in the spring when the block stops momentarily for the I‌st ‌ time is 0.5m.
The acceleration of the block when it stops momentarily for the Ind time is 12.5m∕s2
The acceleration of the block when it stops momentarily for the Ind time is 8.5m∕s2

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