Question

a rocket is fired upward from earth surface such that it creates an acceleration of 19.6 metre per second square if after 5 second its engine is switched off the maximum height of the rocket from earth surface would be ​

Answer 1

Answer:245 metres

Explanation:ATP

u = 0m/s

a = 19.6m/s^2

t = 5 sec

Max h reached = s

Using newtons 2nd eq

S = ut +at^2÷2

S = 0t + 19.6×25/2

S = 9.8× 25

S = 245metres

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