Question

A person drops a rock for me bridge to the water 24 m below at what speed with the rock strike the water

Answers

  1. Answer:

    The rock will strike with a speed of 21.68 m/s.

    Explanation:

    It is given that, a person drops a rock for me bridge to the water 24 m below. We need to find the speed with the rock strike the water. It will move under the action of gravity. So, the speed of the rock is given by :

    v=\sqrt{2gh} \\\\v=\sqrt{2\times 9.8\times 24} \\\\v=21.68\ m/s

    So, the rock will strike with a speed of 21.68 m/s.

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