Question

Ridhi is having some confusion between gravity and gravitational force. She asked her teacher and her teacher explained, how both are different. a) Distinguish between gravitational constant ‘G’ and acceleration due to gravity ‘g.’ (any two points) b)Suppose a planet exists whose mass and radius both are half of the earth. Calculate the acceleration due to gravity on the surface of this planet. Take value of ‘g’ on earth to be 9.8 m/s2 .​

Answer 1

Explanation:

Acceleration due to

Gravity (g) Universal Gravitational

Constant (G)

-> An acceleration produced on a

freely falling body due to the

gravitational force of earth is

known as acceleration due to

gravity . -> Gravitational constant G is

numerically equal to the force of

gravitational that exists between

two bodies of unit mass kept at a

unit distance from each other .

-> Value of g near earth's surface is

9.8ms

−2

. It may vary from one place yo place . -> Value of G is 6.67×10

−11

Nm

2

kg

−2

and

it is an universal constant

Depends upon the distance between the

masses Independent of the distance between the

masses

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