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0 votes
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in Physics by (34.4k points)

A ball of mass 4 kg, moving with a velocity of 10 ms–1, collides with a spring of length 8 m and force constant 100 Nm–1. The length of the compressed spring is x m. The value of x, to the nearest integer, is.......

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1 Answer

+1 vote
by (34.9k points)

Answer is 6

Let's say the compression in the spring by : y.

So, by work energy theorem we have

⇒ y = 2m

⇒ final length of spring

= 8 - 2 = 6m

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