The velocity of the CM of a system
changes from v1= 4îm/s to v2 = 3jm/s
during time ∆t= 2s. If the mass of the
system is m=10 kg, the constant force
acting on the system is:
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Given:
The velocity of center of mass changes from to in 2 seconds.
Mass of the system = 10 kg
To Find:
Constant force acting on the system
Solution:
Second Law of motion:
The second law states that the rate of change of momentum of a body is directly proportional to the force applied.
Initial momentum =
Final momentum =
put the velocities in their vector form.
Constant force acing on the system is .
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