Q

A ball is thrown vertically upward at 20 m/s. What is its displacement after 3 s? Take g = 10 m/s².

RRB Group-D 22/09/2018 / Shift II 2018
✓ Answer: B 15 m
s = ut - gt²/2 = 20 × 3 - 5 × 9 = 15 m upward.
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