Question

A force of 5N acts on a body for 2 milli seconds calculate the impulse . if themass of the body is 5g caluculate the change of velocity

Answer 1

Given info:

force= 5N
time, t= 2 milliseconds = 0.002 seconds
mass,m= 5g = 0.003

impulse = force x time
              = 0.010 Ns

we know, force= mass x acceleration
and acceleration= change in velocity/time
from here you can find out the change in velocity.

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