A 0.687 kg mass is attached to a vertical spring and allowed to fall from the “no load” position. It falls a total of 143 cm. Find: (a) the spring constant

Aball is rolled uphill a distance of 5 m before it slows, stops, and begins to roll back. the ball rolls downhill 9 m before coming to rest against a tree. what is the magnitude of the balls displacement? a. 4 meters b. 9 meters c. 14 meters d. 45 meters