Question

A rocket is launched from the earth surface so it has an acceleration of 19.6m/s².if its engine is switched off after 5sec of it launch then the maximum height attained by the rocket will be

Answer 1

by second eq.
H = ut + 1/2at^2
0 + 1/2 * 19.6 * 25
= 9.8 * 25
= 245 m
So maximum height attained is 245 m

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