Questions
If g is the acceleration due to gravity on the earth's surface, the change in the potential energy of an object of mass m raised from the surface of the earth to a height equal to the radius R of the earth is
detailed solution
Correct option is A
Ug=−GM1M2R⇒Uf−Ui=−GMm2R−GMmRΔu=GMm2R=mgR2 ∵g=GMR2Talk to our academic expert!
Similar Questions
The masses, each of mass m are kept on the vertices of an equilateral triangle of side a. Find the work needed to be done to change the length of the triangle twice of its original value.
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