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Tems11 [23]
2 years ago
11

A stone is projected horizontally from the

Physics
1 answer:
Nadya [2.5K]2 years ago
6 0

Answer:

80 m tall

Explanation:

*** EDITED ***      (I left out the '1/2' in the equation....D'Oh!)

It was descending 4 seconds  ...because it landed 20 m away  (at 5 m/s  ...so 4 seconds)

displacement =<u> 1/2</u>   a t^2

                        = 1/2 * 10 ( 4)^2 = 80 m  tall

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