At what orbital radius (measured from Earth’s centre) must a satellite move so that…

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

At what orbital radius (measured from Earth’s centre) must a satellite move so that its centripetal acceleration is one-quarter of the acceleration due to gravity on Earth’s surface? (Take RE=6.4×106 R_{\rm E}=6.4\times10^{6}\,m.) (a) 2.56×107 m2.56\times10^{7}\,\text{m} (b) 1.28×107 m1.28\times10^{7}\,\text{m} (c) 0.64×107 m0.64\times10^{7}\,\text{m} (d) 0.32×107 m0.32\times10^{7}\,\text{m}

Related theory

Browse the problem library