⚛️ Physics · Laws of Motion · NEET & JEE

A 60 kg person stands in a lift accelerating downward at 2 m/s² (g = 10 m/s²). The apparent weight (reading of the scale) is:

Answer: 480 N.

A 600 N
B 480 N
C 720 N
D 120 N

Correct answer: B. 480 N

Explanation: Apparent weight = m(g − a) = 60(10 − 2) = 480 N.

Free-body diagram of a block on an incline: weight (mg) resolves into mg sinθ along the slope and mg cosθ into the slope, balanced by the normal force N and friction f.

Concept context

Newton's three laws, friction, circular motion, and free body diagrams.

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A 60 kg person stands in a lift accelerating downward at 2 m/s² (g = 10 m/s²). The apparent weight (reading of the scale) is:

Concept context

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