Question

If the mass of the body is 20 kg then what is its normal reaction..

Answer 1

Normal for the body of 20 kg will be 20×10 = 200N

Hope it helps you

Answer 2

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For calculating normal reaction following formula will be used :-

N=mg

Here m=20 kg

and g=9.8 m/s^2

Therefore N=20x9.8

N=196