Question

The gravitational field strength on the Moon is 1.6 ms^-2 and the gravitational field strength of the Earth is 10 ms^-2.
(i) Calculate the weight of an astronaut of 70 kg mass,
a. on the moon.
b. on the earth.

Answer 1

Answer:

Mass of the object, m=10 kg

Acceleration due to gravity at earth, g

e

=9.8 ms

−2

∴ Weight of the object on earth, W=mg

e

=10×9.8=98 N

Acceleration due to gravity at moon, g

m

=

6

1

×9.8=1.63 ms

−2

∴ Weight of the object on moon, W=mg

m

=10×1.63=16.3 N