Q. 12 .     Gravitational force on the surface of the moon is only  \frac{1}{6}  as strong as gravitational force on the earth. What is the weight in newtons of a 10\; kg  object on the moon and on the earth?

Answers (1)

The weight of an object on earth is given by w = mg where m is the mass of the object and g is the gravitational acceleration.

g = 9.8 m s-2

Weight of a 10 kg object on earth = 10 X 9.8 = 98 N 

As gravtitaional force on the surface of moon is only 1/6 th of that on earth the gravitational accelerationn on moon would be equal to g/6.

Weight of an object of mass 10 kg on moon is therefore given as follows

\\w=10\times \frac{g}{6}\\ w=10\times \frac{9.8}{6}\\ w=16.33N

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