Question

A 4 kg block is placed on a horizontal platform. Another block of mass 3 kg and a block of mass m is placed on 4 kg block . If platform is moving upward with acceleration 2m/sec^2 then resultant force acting on 3 kg block is

Answer 1

Mass if the block=3kg
Acceleration of the block=2m/s²
Therefore the net force on 3kg block
=3×2kg-m/s²
=6kg-m/s
=6N
So the force acting on 3kg block is 6N.

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