In case of an orbiting satellite, if the radius of orbit is decreased.
P.E of orbiting satellite at distance r from centre of earth
=−GMmrK.E=GMm2R and M.E=−GMm2R
If R decreased K.E increases.
P.E and M.E become more negative, thus decrease.
A satellite is moving around the with speed v in a circular orbit of radius r. If the orbit radius is decreased by 1%, its speed will