5. An ideal spring with spring constant 600 N/m stands vertically on the ground.

Question

5. An ideal spring with spring constant 600 N/m stands vertically on the ground. The spring is now compressed 0.25 m and a 2.0 kg block is placed on top of the compressed spring. The block is then released from rest and is projected upward. What is the maximum height that the block reaches above the point it was released from? 6. Same problem as above (# 5) except now the block is pushed by the spring up a 30 degree incline. There is a coefficient of kinetic friction between the incline and the block of 0.3. a) What is the magnitude of the kinetic friction force as the block slides? b) What is the distance along the incline that the block slides before coming to rest?

Explanation / Answer

mgh=1/2kx^2

h=kx^2/2mg=600/(16*2*9.8)=1.9132m

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