Question

A body weighs 25kg on the surface of the earth. If the mass of the earth is 6.0 X 10 3 km, the radius of the earth is 6.4 X 10 6 km. and the universal gravitational constant is 6.7 X 10 -11 Nm -2 kg -2 , calculate i) the force acting upon the body and the earth ii) the acceleration produced in the body, iii) The acceleration produced in the earth. [ 245.15N, ii) 9.81ms -2 , iii) 4.08x10 -23 ms -2 ].

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Secondary SchoolPhysics 5+3 pts

The acceleration of moon with respect to Earth is 0.0027 metre per second square and the acceleration of an apple falling on the earth surface is about 10 metre per second square assume that the radius of the moon is one for the earth's radius if moon is stopped for an instant and then released it will fall towards the earth the initial acceleration of the Moon towards the earth will be ?