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pravesh gupta Grade: 12

Q.1.Given that the gravitation potential on eaarth surface is V0. The potential at a point distant half the radius of earth from the centre will be.............

Q.2.The percentage  increase in the earth's angular velocity,so that all bodies lying on the equator,feel weightlessness is nearly...........

Q.3.A particle has gravitational mass equal to 2.01 kg and inertial mass 2 kg. If it is falling near earth's surface ,its acceleration willl be.............

Q.4.If the radius of earth shrinks to kR(k<1),where R is the radius of Earth ,then the time period of rotation of Earth ,about its axis will become...............

Q.5.Can we apply Newtons 2nd and 3rd law of motion to obtain velocity of a planet at any point revolving around sun in an elliptical orbit?

Q.6.With what minimum velocity v should a particle be thrown horizontally from a height h above the surface of the earth so that it does not fall back on the earth? Radius of earth is R.

Q.7.A fixed spherical shell of inner radius R and outer radius 2R has mass M. A particle of mass m is held at a distance 2R from the surface of the body. If the particle is released from that point ,with what speed will it hit the surface of the spherical body?

7 years ago

Answers : (1)

Vijay Luxmi Askiitiansexpert
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Vijay Luxmi

7 years ago
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