Question

14. Our body has weight because of
the gravitational force of the Earth.
*
O true
O false
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Answer 1

Answer:

Gravitational force is the force between two bodies irrespective of the presence of any objects between them,

F

g

=

R

2

GMm

where G is the constant of gravitation, M and m are the masses of Earth and the object, R is the distance between the object and center of Earth.

Answer 2

On Earth, body weight is given by Newton's laws as mass times gravitational acceleration. That is, an object's weight is determined by the pull of gravity on it. We hypothesised that perceived body weight is – like actual weight – dependent on the strength of gravity.