Question

mass having an object is 100 kg find the g when it brings from depth 400m
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Answer 1

Answer:

Mass of object, m=100kg; initial velocity, u=5ms−1; final velocity, v=8ms−1; time, t=6s

Initial momentum =mu=100×5=500Ns

Final momentum =mv=100×8=800Ns

Force exerted on the object

F=tmv−mu=6800−500=6300=50N

Explanation:

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Answer 2

Answer:

1 kg =1000gm

therefore, 100 kg = 100*1000

=>1,00,000 gm.