GravitationHard
Question
Gravitational potential difference between a point on surface of planet and another point 10 m above is 4 J/kg. Considering gravitational field to be uniform, how much work is done in moving a mass of 2 kg from the surface to a point 5m above the surface ?
Options
A.4 J
B.5 J
C.6 J
D.7 J
Solution
Gravitational field g = - 
J / kg m
Work done in moving a mass of 2 kg from the surface to a point 5 m above the surface,
W = mgh = (2kg)
(5m) = 4J
J / kg mWork done in moving a mass of 2 kg from the surface to a point 5 m above the surface,
W = mgh = (2kg)
(5m) = 4JCreate a free account to view solution
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