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STATEMENT -1 : The escape velocity upon ...

STATEMENT -1 : The escape velocity upon Earth's surface is 11.2 km/h. But velocity required for escaping is little less than 11.2 km/h if launched properly.
and
STATEMENT -2 : Escape velocity is independent of angle of projection. Conservation of mechanical energy uses KE and GPE which are scale quantities.

A

Statement 1- True, Statement -2 is True, Statement -2 is a correct explanation for Statement -11

B

Statement -1 is True, Statement -2 is True, Statement -2 is NOT a correct explanation for Statement -11

C

Statement -1 is True, Statement -2 is False

D

Statement -1 is False, Statement -2 is True

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • Escape velocity at earth's surface is 11.2km//s . Escape velocity at the surface of a planet having mass 100 times and radius 4 times that of earth will be

    A
    `56km//s`
    B
    `112km//s`
    C
    `305km//s`
    D
    `11.2 km//s`

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    A
    2.8 km/s
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    22.4 km/s
    D
    44.8 km/s

  • Escape velocity of a rocket is 11.2 km/sec. It is released at an angle of 45^(@) . Its escape velocity is

    A
    11.2 m/sec
    B
    `11.2 sqrt(2)` km/sec
    C
    11.2 km/sec
    D
    22.3 km/sec

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