Question

A 5.8 kg block slides down a 11.6 m long ramp inclined at an angle of 30o above the horizontal. At the bottom of the plane, the block transitions to a flat, smooth table that is 2.8 m in length. There is a spring attached to the wall at the end of the flat portion of the track that has spring constant of 251.2 N/m. How much potential energy does the block have at the top of the ramp?

Answer 1

At the top of the ramp the block has

$E_p=mgh=mgl\sin30°=5.8\cdot 9.81\cdot 11.6\cdot \sin30°=330 J$