Question

force of 20 Newton act on a system of two block of mass 2 kg and 3kg then the contact force between the block is

Answer 1

20×2=40N
20×3=60N
now contact force
(60-40)N=20N

Answer 2

Hey
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Here your answer

Force on 2 kg block
= 2×20
= 40
Force on 3 kg block
= 3×20
= 60
Force between the block is
= 60-40
= 20 Newton

Hope it helps you

Thanks