Question

The weight of a body on the surface
of earth is 20 N. What will be the
weight of body at height 6400 km
from the surface of earth?
(Radius of earth = 6400 km)​

Answer 1

Answer:

5 N

Explanation:

• g at an height = GMm/ Total distance square
• g'= GMm/ (R+ R)^2
• g'= GMm/4R^2
• g'= g/4
• therefore weight = original weight/4
• weight= 20N/4 =5N

Answer 2

Answer:

answer is 5n

Explanation:

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