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A ball is dropped from the root of a tower of height h

A ball is dropped from the root of a tower of height h.The total distance covered by it in the last second of its motion is equal to the distance covered by it in first 3s.The value of h in metre is (take,g=10 ms ⁻²)

Options

(a) 125
(b) 200
(c) 100
(d) 80

Correct Answer:

125

Explanation:

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