Question

What is the magnitude of the gravitational force between the
earth and a 1 kg object on its surface? (Mass of the earth is
6 x 1024 kg and radius of the earth is 6.4 x 106 m.)
​

Answer 1

Mass-. It can be measured by beam-balance.

Weight- It can be measured by spring balance.

Answer 2

Answer:

Given : Mass of earth M=6×10

24

kg

Mass of object m=1 kg

Radius of earth R=6.4×10

6

m

Force of gravitation between them, F=

R

2

GMm

F=

(6.4×10

6

)

2

6.67×10

−11

×(6×10

24

)×1

=9.77 N