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Question Number 172604 by Mikenice last updated on 29/Jun/22

Answered by mr W last updated on 29/Jun/22

$$v_1=\sqrt{2{gh}_1}=\sqrt{2\times 9.8\times 4.9}=9.8m/s$$$$t_1=\frac{v_1}{g}=\frac{9.8}{9.8}=1s$$$$t_2=4-1=3s$$$$h=v_1{t}_2=9.8\times 3=29.4m$$

Commented by Tawa11 last updated on 30/Jun/22

$$\mathrm{Great}\mathrm{sir}$$

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