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QNEET-2019-Ph-819: NEET 2019 Physics - Class 11 NEET-2019-Ph-819 Solution: A body weight 200 N on the surface of earth. How much will it…
A body weight 200 N on the surface of earth. How much will it weight half way down to the centre of the earth? 200 N 250 N 100 N 150 N
Multiple Choice Options
- A 200 N
- B 250 N
- C 100 N
- D 150 N
Step-by-Step Verified Solution
Accelerattion due to gravity at a depth d from
surface of Earth
g ' = g ( 1 _ d R ) ....(1)
Multiplying by mass 'm' on both sides of equation (1)
m g ' = m g ( 1 _ d R )
= 200 ( 1 _ R 2 R ) ( _ d = R 2 )
= 200 2 = 100 N