 Quote by dreamz25
in gravitation i have read that...
the force on a planet towards radius is given by
GMm/r^2
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OK.
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and the force which acts radially outwards is
Mv^2/r
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There is no outward force.
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so dunno where the net force acts... !!!:{
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The only force acting is gravity.
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and torque = F X R
if the direction of net force is towards center then it makes and angle of
180 degrees which gives ex. torque = 0 as sin 180 = 0 ....
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Good.