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3 years ago

12

Calculate the height from which a body is released from rest if its velocity just before hitting the ground is 30 meter per seco

nds?

2 answers:

mamaluj [8]3 years ago

6 0

Explanation:

u = 0m/s

v = 30m/s

a = g = 10m/s²

s = H = ?

using the formula,

v² = u² + 2as

30² = 0² + 2(10)(H)

900 = 20H

H = 900/20

H = 45m

andre [41]3 years ago

5 0

Answer:

the answer is

45m - height

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