Impulse, force and momentum

A 50 kg mass is sitting on a frictionless surface. An unknown constant force pushes the mass for 2 seconds until the mass reaches a velocity of 3 m/s.

What is the value of the unknown force?
b) prove that Impulse and momentum will have an equal value through your solutions.

Correct answer:

F =  75 N

Step-by-step explanation:

m=50 kg t=2 s v=3 m/s  p1=0 kgm/s p2=m v=50 3=150 kgm/s  p=p2p1=1500=150 kgm/s  Δp = I = Ft  F=tp=2150=75 N



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