Q

A ball initially at rest is dropped from a height and takes 5 seconds to reach the ground. What is the average speed during its fall? (g = 10 m/s²)

RRB JE 20/02/2026 / 12:45 PM - 2:15 PM 2026
✓ Answer: D 25 m/s
For an object dropped from rest, v = gt = 10 × 5 = 50 m/s. Average speed during uniform acceleration from rest is (u + v)/2 = (0 + 50)/2 = 25 m/s.
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