PH-1023
Conservation of energy
Physics · Secondary 3 · Hard · Conservation of energy
A 0.40 kg ball is dropped from rest and reaches a speed of 6.0 m/s just before hitting the ground. Take gravitational field strength as 10 N/kg. Assuming no air resistance, from what height was the ball dropped?
- 1.8 m
- 3.6 m
- 0.90 m
- 6.0 m
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