Easy
$A$ person sitting in a chair in a satellite feels weightless because
- AThe earth does not attract the objects in a satellite
- BThe normal force by the chair on the person balances the earth's attraction
- CThe normal force is zero
- DThe person in satellite is not accelerated
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In a satellite,if the time of revolution is $T$,then the kinetic energy $(K.E.)$ is proportional to:
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$A$ test particle is moving in a circular orbit in the gravitational field produced by a mass density $\rho(r) = \frac{K}{r^2}$. Identify the correct relation between the radius $R$ of the particle's orbit and its period $T$.
DifficultJEE MAIN 2019
View Solution$A$ body moves in a circular orbit of radius $R$ under the action of a central force. The potential due to the central force is given by $V(r) = kr$ ($k$ is a positive constant). The period of revolution of the body is proportional to:
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