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A block of mass 2.0 kg is given an initi...

A block of mass 2.0 kg is given an initial speed along the floor towards a spring as shown. The coefficient of kinetic friction between the floor and the block is 0.4 and force constant of the spring is `5.6xx10^(3)` N/m. The block compresses the spring by 10cm before it stops for a moment. What is the initial speed (m/s) of the block?

A

3.6 m/s

B

4.7 m/s

C

4.0 m/s

D

6.0 m/s

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A
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