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A rocket is fired upward from the earth'...

A rocket is fired upward from the earth's surface such that it creates an acceleration of 19.6 m/sec . If after 5 sec its engine is switched off, the maximum height of the rocket from earth's surface would be

A

245 m

B

490 m

C

980 m

D

735 m

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • A rocket is fired upward from the earth's surface such that it creates an acceleration of 20 m//s^(2) . If after 5 s its engine is switched off, the maximum height of the rochet from the earth's surface would be

    A
    250 m
    B
    500 m
    C
    750 m
    D
    1000 m

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    The rocket will remain in earth's gravitational field
    B
    The rocket will revolve round the earth (
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    D
    None of the above

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    The earth remains stationary while the ball moves upwards
    B
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    The ball and earth both move away from each other

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