1-A piece of putty and a tennis ball of equal mass are thrown against a wall wit

Question

1-A piece of putty and a tennis ball of equal mass are thrown against a wall with the same speed. If the tennis ball bounces off the same speed but the putty sticks to the wall, then
a-The putty undergoes the greatest change of momentum b-The golf ball undergoes the greatest change of momentum c-The change in momentum for each is the same d-The strange depends on the angle of impact
2-Two objecs ‘A’ and ‘B’ of identical mass traveling in the opposite directions with the speed of Va=4m/s and Vb=5m/s make a head on collision. The speed of each object after the collision if the collision is perfectly elastic is
a- Va=4m/s and Vb=4m/s b- Va=4m/s and Vb=5m/s c- Va=5m/s and Vb=4m/s d- Va=5m/s and Vb=5m/s 1-A piece of putty and a tennis ball of equal mass are thrown against a wall with the same speed. If the tennis ball bounces off the same speed but the putty sticks to the wall, then
a-The putty undergoes the greatest change of momentum b-The golf ball undergoes the greatest change of momentum c-The change in momentum for each is the same d-The strange depends on the angle of impact
2-Two objecs ‘A’ and ‘B’ of identical mass traveling in the opposite directions with the speed of Va=4m/s and Vb=5m/s make a head on collision. The speed of each object after the collision if the collision is perfectly elastic is
a- Va=4m/s and Vb=4m/s b- Va=4m/s and Vb=5m/s c- Va=5m/s and Vb=4m/s d- Va=5m/s and Vb=5m/s
a-The putty undergoes the greatest change of momentum b-The golf ball undergoes the greatest change of momentum c-The change in momentum for each is the same d-The strange depends on the angle of impact
2-Two objecs ‘A’ and ‘B’ of identical mass traveling in the opposite directions with the speed of Va=4m/s and Vb=5m/s make a head on collision. The speed of each object after the collision if the collision is perfectly elastic is
a- Va=4m/s and Vb=4m/s b- Va=4m/s and Vb=5m/s c- Va=5m/s and Vb=4m/s d- Va=5m/s and Vb=5m/s

Explanation / Answer

1) change in momentum for both wil same as momentum remains conserved in both elastic and inelastic collision .

2) Va = 5m/s and Vb = 4m/s as velocities get exchanged in elastic head on collision .

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