A lift moving upwards with a uniform acceleration of 5\(ms^{-2}\) carries a body of mass...

WAEC 2006

A lift moving upwards with a uniform acceleration of 5\(ms^{-2}\) carries a body of mass p kg. If the reaction on the floor is 480 N, find the value of p. [Take g = \(10 ms^{-2}\)].

A. 32
B. 36
C. 48
D. 64

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Correct Answer: Option A

Explanation

Reacting force - Weight = Net force

R = W + ma = mg + ma

480 = 10p + 5p

480 = 15p

p = 32 kg

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A lift moving upwards with a uniform acceleration of 5\(ms^{-2}\) carries a body of mass...

Correct Answer: Option A

Explanation

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