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A block of 8 kg is moving on a frictionless surface with velocity 4 m/s. After compressing a spring,

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A block of 8 kg is moving on a frictionless surface with velocity 4 m/s. After compressing a spring, this block comes to rest. What is the compression in spring if spring constant is 2 x 104N/m?

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Kinetic energy of block can be calculated as follows:

The KE will be equal to work done on compressing the spring.

Hence, compression can be calculated as follows:


 

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