Q

A 0.5 kg mobile phone is dropped from a balcony 100 m high. Find its initial potential energy. (g = 10 m/s²)

RRB Group D 24/09/2018 / Shift-II 2018
✓ Answer: D 500 J
U = mgh = 0.5 × 10 × 100 = 500 J.
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