True False A. 0.88 kg*m/s B. 0.08 kg*m/s C. 0.98 kg*m/s D. 1.35 kg*m/s In the fo

Question

True

False

1. In the force probe part, you will vary the mass of one of the carts, true or false?  
   
   

   True

   False

   
   
   Which of the following statements is false?
   
   A. In an elastic collision of two objects, their total kinetic energy remains unchanged. B. Completely inelastic collision of two objects means that they smashed to pieces during the collision.
   C. The linear momentum of a system is conserved if the net external force on the system is zero.
   1. 
      
      When observing an inelastic collision, A. be sure that the carts come to rest when they collide. B. it is not necessary to know the mass of the carts. C. the carts must be oriented so that the Velcro pieces can stick to each other. D. the carts must be oriented so that the hooks will attach to each other during the collision.

Explanation / Answer

1. total momentum P = m1u1- m2u2 = 0.5*0.8 + 0.6*0.8 = 0.88 kgm/s

2. false

3. Completely inelastic collision of two objects means that they smashed to pieces during the collision.

4.

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