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A ball is dropped off a high building and strikes the ground with an impact velocity of 30 m/s. The height of the building is :
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HEY YOU ✨ DON'T MISS ❣️ ALL VIBES WHATEVER YOU LIKE ❣️..q t p b s x r yoz __
A ball is dropped off a high building and strikes the ground with an impact velocity of 30 m/s. The height of the building is :
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Answer:
45 m
Explanation:
when ball is dropped from the building, u = 0 m/s
impact velocity, v = 30 m/s
acceleration due to gravity, g = 10 m/s2
v2 - u2 =2as
(30)2-(0)2=2x10xs
900= 20s
s=900/20
s=45 m