12
Question Question 12
Gravitational force on the surface of the moon is only as strong as gravitational force on the earth. What is the weight in newtons of a 10 kg object on the moon and on the earth?
Given,
Acceleration due to earth's gravity g = 9.8 ms-2
Object's mass, m = 10 kg
Acceleration due to moon gravity = gm
Weight on the earth = We
Weight on the moon = Wm
Weight = mass x gravity
gm = ge (given)
So, Wm = m gm = m x x ge
Wm = 10 x x 9.8 = 16.34 N
We = m x ge = 10 x 9.8
We = 98 N
Hence, weight on moon and earth = 16.34 and 98 N respectively.