A 1.75 kg stone falls from the top of a cliff and strikes the ground at a speed of 58.8 m/s. What is the height of the cliff??
1 answer:
Answer:
172.9m
Explanation:
h = 1/2 gt^
First calculat for t using
v = gt
t = v/g = 58.8/10
= 5.88secs
now h = 1/2 x 10 x 5.88^2
h =1/2 x 10 x 34.57
= 345.74/2
= 172.9m
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