Q.

A missile is launched with a velocity less than the escape velocity. The sum of its kinetic and potential

Moderate

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By Expert Faculty of Sri Chaitanya

positive

negative

zero

may be positive or negative depending on its initial velocity

answer is 2.

(Detailed Solution Below)

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Detailed Solution

Since velocity of projectile is less than escape velocity, it will either strike the surface of earth or move around the earth in elliptical orbit. Therefore sum of K.E and P.E i.e.,12mv2+-GMmR<0Hence option - (2) is right.

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