alleryA 50 kg person stands on a scale in an elevator accelerating UP at 2 m/s². Scale reading:
A400 N
B500 N
C600 N
D700 N
Answer & Solution
Correct answer: C. 600 N
Apparent weight = m(g + a) = 50 × (10 + 2) = 50 × 12 = 600 N. (Going up: scale reads MORE than at rest weight of 500 N. Going down/free fall: less.)
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