Alight horizontal spring has a spring constant of 105 n/m. a 2.00 kg block is pressed against one end of the spring, compressing the spring 0.100 m. after the block is released, the block moves 0.250 m to the right before coming to rest. what is the coefficient of kinetic friction between the horizontal surface and the block?

Coefficient of friction,

Explanation:

Given that,

Spring constant of the spring, k = 105 N/m

Mass of the block, m = 2 kg

The compression in the spring, x = 0.1 m

Let is the coefficient of kinetic friction between the horizontal surface and the block. The frictional force is balanced by the restoring force in the spring such that,

So, the coefficient of kinetic friction between the horizontal surface and the block is 0.535. Hence, this is the required solution.

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.