EASY
JEE Main
IMPORTANT
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The centripetal force on a satellite orbiting around the earth and the gravitational force of the earth acting on the satellite both equals . The net force on the satellite is
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Important Questions on Gravitation
EASY
JEE Main
IMPORTANT
Reason of weightlessness in a satellite is
MEDIUM
JEE Main
IMPORTANT
Assume that the acceleration due to gravity on the surface of the moon is times the acceleration due to gravity on the surface of the earth. If is the maximum range of a projectile on the earth's surface, what is the maximum range on the surface of the moon for the same velocity of projection?
Speed of projectile is not very high.
EASY
JEE Main
IMPORTANT
If orbital velocity of the planet is given by then
EASY
JEE Main
IMPORTANT
Suppose a smooth tunnel is dug along a straight line joining two points on the surface of the earth and a particle is dropped from rest at its one end. Assume that mass of the earth is uniformly distributed over its volume. Then,
EASY
JEE Main
IMPORTANT
A planet is revolving round the sun in an elliptical orbit, If is the velocity of the planet when its position vector from the sun is , then areal velocity of the planet is
EASY
JEE Main
IMPORTANT
The magnitude of the gravitational potential energy of a body at a distance from the centre of the earth is . Its weight at a distance from the centre of the earth is
EASY
JEE Main
IMPORTANT
Two satellites of same mass are launched in the same orbit around the earth so as to rotate opposites to each other. If they collide inelastically and stick together as wreckage, the total energy of the system just after collision is
EASY
JEE Main
IMPORTANT
Earth orbiting the satellite will escape, if
