A man throws a ball vertically upward and it rises through $20\ m$ and returns to his hands. What was the initial velocity ($u$) of the ball and for how much time ($T$) it remained in the air $\lbrack g = 10m/s^{2}\rbrack$

Question

Dr. Abubacker · Accepted Answer

(d) $u = \sqrt{2gh} = \sqrt{2 	imes 10 	imes 20} = 20m/s$
and $T = \frac{2u}{g} = \frac{2 	imes 20}{10} = 4\ sec$

Q. A man throws a ball vertically upward and it rises through $20\ m$ and returns to his hands. What was the initial velocity ($u$) of the ball and for how much time ($T$) it remained in the air $\lbrack g = 10m/s^{2}\rbrack$

Explanation

Reviewed by Dr. Abubacker

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