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

Question

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

in progress 0
Gerda 3 years 2021-08-28T06:35:43+00:00 1 Answers 4 views 0

Answers ( )

  1. Amity
    0
    2021-08-28T06:36:46+00:00
    Reply

    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.

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )