Question

a block of metal weighing 2kg is resting on a frictionaless plane it is struck by a jet releasing water at a rate of 1kg/s and at a speed of 5m/s the intinal acceleration of the block will be?

Answer 1

Force exerted by the block is
F = mv/t
= (m/t) × v
= 1 kg/s × 5 m/s
= 5 N

Acceleration of block = Force / Mass
= 5 N / (2 kg)
= 2.5 m/s²

Initial acceleration of block is 2.5 m/s²

Answer 2

Answer is in the image