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Question 36: What is the force of gravity on a body of mass 150 kg lying on the surface of the earth? (Mass of earth = 6 x 1024 kg; Radius of earth = 6.4 x 106 m; G = 6.7 x 10-11 Nm2/kg2) Lakhmir Singh Physics Class 9

Answer»

1471.5 NExplanation:Given, Now, the given MASS of BODY LYING on the surface , m= 150 kgSo, the FORCE acting on the body is given by, F= m.g                                                                              = 150 x 9.81 N                                                                              = 1471.5 NSo, the force of gravity on a body of mass 150 kg lying on the surface of the EARTH will be 1471.5 N.



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