1. A bowling ball is rolled towards a set of pins. The bowling ball hits seven p
ID: 1393069 • Letter: 1
Question
1. A bowling ball is rolled towards a set of pins. The bowling ball hits seven pins and knocks them over. What must happen to the bowling ball during this collision?
2. Two objects must be in physical contact with each other in order for a collision to occur.
True
False
THE SITUATION BELOW APPLIES TO THE NEXT FIVE QUESTIONS (QUESTION 3, 4, 5, 6, AND 7):
3. Most materials in life are partially inelastic. Do the following items tend to be more elastic, or inelastic?
Pool ball striking pool balls:
4. Ping pong ball striking the table:
5. Ball of spit hitting the sidewalk:
6. A meteor striking the atmosphere:
7. A satellite getting a gravity assist from Jupiter:
THE SITUATION BELOW APPLIES TO THE NEXT TWO QUESTIONS (QUESTION 8 AND 9):
Consider the collision of two balls, one with mass m1 = m and a second with mass m2 = 2m. Initially the lighter ball moves with speed v1i and the second is at rest. The collision all happens in one dimension; along a straight line.
8. If the collision between these balls is perfectly inelastic, what is the final speed of the combined object after the collision?
9. Imagine the same collision again, this time it happens elastically, with all the kinetic energy conserved. What is the final speed for mass m2?
A. It will transfer momentum to the pins, causing it to slow down B. It will take momentum from the pins, causing it to speed up C. It will not be affected by the pins, and will maintain the same velocity.Explanation / Answer
1. from conservation of momentum , initial total momentum is only due to the motion of ball as pins were at rest. but after collision , there is motion for pins, so the momentum of ball will be lower and hence we can say
A.It will transfer momentum to the pins, causing it to slow down
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