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A particle is dropped from a building. It takes 4 sec for the particle to reach the ground

A particle is dropped from a building. It takes 4 sec for the particle to reach the ground. Then height of the building is (g=10m/s²)

Options

(a) 20 m
(b) 40 m
(c) 80 m
(d) 75 m

Correct Answer:

80 m

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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