If the net external force acting on a system is zero, then the total momentum of the system is zero.
Impulses are smaller when bouncing takes place.
After a firecracker falling through the air explodes, the net momentum of its fragments decreases.
The padding on car dashboards lengthens the time of a passenger’s impact during a collision.
If a net force acts on a system, the system’s momentum will change.
Which has more momentum, a large truck moving at 30 miles per hour or a small truck moving at 30 miles per hour?
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