railway RRB Technician Grade 1 Mock Test 2024 Physics Laws of Motion Newton's Laws of Motion

A body of mass 0.05 kg is observed to fall with an acceleration of 9.5 ms^-2. The opposing force of air on the body is ______ (g = 9.8 ms^-2).

1

0.15 N

2

0.030 N

3

Zero

4

0.015 N

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