First slide

Gravitational force and laws

Question

If Gravitational constant is decreasing in time, what will change in case of a satellite orbiting around earth

Easy

A

Time period, angular velocity
B

Orbiting radius
C

Tangential velocity
D

both (1) and (2)

Solution

$T^{2} = \frac{4 π^{2}}{G M} r^{3}$ . If G is variable then time period, angular velocity and orbital radius also changes accordingly.

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