alleryA mass of 20 kg is at a height of 8 m above the ground. The potential energy of the body is (g = 9.8 m/s²):
A1568 J
B1372 J
C980 J
D1764 J
Answer & Solution
Correct answer: A. 1568 J
1. Potential energy PE = m g h.
2. = 20 × 9.8 × 8.
3. = 1568 J.
_Source: RRB Group D CEN-02/2018 PYQ, Q.86._
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