The force 'F' acting on a particle of mass 'm' is indicated by the force - time graph shown below. The change in momentum of the particle over the time interval from zero to 8 s is:
24 Ns
20 Ns
12 Ns
6 Ns
As we learnt in
Impulse -
- wherein
Area of F-t graph gives change in momentum
For 0 to 2 sec
For 2-4
Total change in momentum 0 to 8 sec
Correct option is 3.
Option 1)
24 Ns
Incorrect
Option 2)
20 Ns
Incorrect
Option 3)
12 Ns
Correct
Option 4)
6 Ns
Incorrect