true or false
2.impulse is defined as the force exerted on an object times the time it lasts
3.if the net external force acting on a system is zero then the total momentum of the system is zero
4.when two objects collide and completely bounce apart with no lasting deformation or generation of heat the collision is said to be elastic
5.when two objects collide and completely stick together the collision is said to be inelastic
6.impulses are normally smaller when bouncing takes place
7.perfectly elastic collisions between large objects are uncommon in the everyday world
8.when a baseball player follow through when hitting the ball the contact time with the ball is longer
9.automobile dashboards that are padded lengthen the ttime of impact in case of a collision
10. if a net force acts on a system the systems momentum will change
11. momentum is scalar quantityTrue or false momentum is defined as an objects mass times its velocity?
1.false
2.false
3.true
4.false
5.false
6.false
7.false
8.true
9.false
10.false
11.false
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