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08-12-2022
Physics

Answered

A spring is placed horizontally on a frictionless table. The spring constant of the spring is 50 N/m, and it
is compressed 0.1 m by a 2 kg block.

a. How much energy is stored in the spring? [PE, = 1/2 kx²]

b. When the spring expands back to its resting position, it pushes the block away. What is the kinetic energy of the block as a result of this force?

c. What is the velocity of the block as it is pushed away by the spring? [KE = 1/2 mv²]

Answer :

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