Q

A force of 60 N is used to push a box, causing it to accelerate at 3 m/s². What is the mass of the box?

RRB Group D 10 Aug, 2026 (4:30 PM - 6:00 PM) 2026
✓ Answer: B 20 kg
The correct choice is 20 kg. It follows from the relevant Newtonian mechanics, motion, work, energy, power or simple-machine relationship.
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