Q

A rocket rises at constant speed 20 m/s for 35 s, then its fuel supply stops. What maximum height does it reach, using g = 10 m/s²?

RRB ALP & Technician 14/08/2018 / Shift I 2018
✓ Answer: B 720 m
Powered ascent covers 20 × 35 = 700 m. Coasting adds u²/(2g) = 20 m, giving 720 m.
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