Question

an object is thrown vertically upward and rise to a height of 20 cm calculate 1) the velocity with which the object was thrown upward​

Answer 1

Answer:

I don't know the answer is

Explanation:

I don't know the answer

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Answer 2

Explanation:

d=20m

a=-9.8

v=0

v^2-u^2=2as

0-u^2=2*-9.8*20

-u^2=-392

u^2=392

u=

$\sqrt{392}$

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