A 1 kg object is dropped to the ground from a height of 30 m. The work done by the force of gravity will be (take g = 10 m/s²):
A30 J
B10 J
C300 J
D0.33 J
Answer & Solution
Correct answer: C. 300 J
1. Work done by gravity = m × g × h.
2. = 1 × 10 × 30.
3. = 300 J.
_Source: RRB Group D CEN-02/2018 PYQ, Q.60._
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