Question

1.  Give the S.I. unit of G and its value.      
2.  g=GM/R2, what does these symbols denote?      
3.  When a ball is let free fall from the top of building. What is the acceleration and what its sign?      
4.  A ball is projected vertically upwards with an initial velocity ‘u goes to a maximum height ‘h’ before touching the ground. What is the value of ‘h’ ?      
5.  How is the weight of an object related to its mass?      
6.  The mass of the body on earth is 60kg, what is its weight on the earth and on moon.      
7.  The mass of earth is 6x1024 kg and that of the moon is 7.4x 1022kg. If the distance between the earth and the moon is 3.84x105km. Calculate the force exerted by the earth and the moon.      
     G=6.67x10-11 Nm2 kg-2
8.  Calculate the value of ‘g’ acceleration due to gravity.      
9.  Gibe difference between ‘g’ and ‘G’      
10.  If ball is thrown up in the sky, what will happen to its value of ‘g’?      
11.  Derive the formula for the universal law of gravitation.      ​

Answer 1

Explanation:

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