1) Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 1.1 m/s and a mass of 0.36 kg. Cart 2 has a mass of 0.60 kg. (a) If the total momentum of the system is to be zero, what is the initial speed (in m/s) of Cart 2? (Enter a number.) m/s

(b) Does it follow that the kinetic energy of the system is also zero since the momentum of the system is zero?

Yes or No

(c) Determine the system's kinetic energy (in J) in order to substantiate your answer to part (b). (Enter a number.) J

2) A basketball player is running at 5.20 m/s directly toward the basket when he jumps into the air to dunk the ball. He maintains his horizontal velocity. (For each answer, enter a number.)

(a)

What vertical velocity (in m/s) does he need to rise 0.650 meters above the floor? m/s

(b)

How far (in m) from the basket (measured in the horizontal direction) must he start his jump to reach his maximum height at the same time as he reaches the basket? m