Q

A constant force is applied to a 5 kg object for 4 seconds, causing its velocity to increase from 2 m/s to 10 m/s. What is the magnitude of this force?

RRB Group D 25 Aug, 2026 (12:45 PM - 2:15 PM) 2026
✓ Answer: A 10 N
Acceleration is (10−2)/4 = 2 m/s². Therefore F = ma = 5×2 = 10 N.
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