Question

calculate the force of gravitation due to earth on a ball of 1 kg mass laying on the ground mass of the earth=6×10to the power of 24 kg radius of the earth=6.4×10 to the power of 3kg

Answer 1

F=GMm /R^2 M=Mass of the earth =6 x10*24kg m=mass of the body=1kg,R= Radius of the earth=6.4 x10*3m,G=Gravitational constant=6.67 x10*-11Nm*2/kg*2 then F=6.67 x10*-11x6 x10*24 x1/6.4 x6.4 x10*3 x10*3 =6.67 x6 x10*13/6.4 x6.4 x10*6 =667 x6 x10*7/64 x64=0.97705 x10*7 =9.7705 x10*6N