3 years ago

When is a body said to be motion (movement )?

Physics

1 answer:

Stels [109]3 years ago

3 0

A body is said to be in motion when it's position changes continuously.

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a) 4.45 m/s

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Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

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$v^2-u^2=2as\\\Rightarrow -u^2=2as-v^2\\\Rightarrow u=\sqrt{v^2-2as}\\\Rightarrow u=\sqrt{0^2-2\times -9.81\times 1}\\\Rightarrow u=4.45\ m/s$

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Time taken to reach the maximum height is 0.45 seconds

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