The three air carts shown in Figure 927 have masses,
Chapter 9, Problem 84(choose chapter or problem)
The three air carts shown in Figure 927 have masses, reading from left to right, of m, 2m, and 4m, respectively. Initially, the cart on the right is at rest, whereas the other two carts are moving to the right with a speed . All carts are equipped with putty bumpers that give completely inelastic collisions. (a)Find the nal speed of the carts. (b)Calculate the ratio of the nal kinetic energy of the system to the initial kinetic energy.
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