3- Determine: a)- The change in momentum of the basketball b)- The impulse on the ball c) - The Force acting on the ball if it was in contact with the wall for 0.003 seconds. 8. V=-25 m /s 9. M=0.8 Kg

A 750-kg car stopped at an intersection is rear-ended by a 1730-kg truck moving at a speed of 16.0 m/s.  1) If the car was in neutral and its brakes were off, so that the collision is approximately elastic, find the final speed of the truck.   2) Find the final speed of the car.

4. A 1500 kg car traveling at +20 m/s collides with a 1000 kg car traveling in the opposite direction with an unknown velocity. If the 1500 kg car has a velocity of -4.0 m/s and the 1000 kg car has a velocity of +11 m/s after the collision, what is the velocity of the 1000 kg car before the collision? Before After

A brick stands on the ground vertically, as shown. A ball made of clay with mass m is thrown with velocity v at the brick and sticks to it. Another ball made of aluminum but with the same mass m is also thrown with the same velocity v at the brick but instead bounces off of it. Which ball is more likely to knock the brick over? a. Not enough information. b. the clay ball c. the aluminum ball d. Both balls are equally likely to knock over the brick.

1a) A 4.50 kg ball rolling north at 5.00 m/s collides with a 2.50 kg ball rolling south at 3.00 m/s. If the collision is elastic, set up the equations you would solve to determine how fast is each ball moving after the collision. 1b) If the collision between the two balls in question 1 instead results in both balls sticking together as one, what will their resulting velocity be?

2. A ball of mass 150 g traveling at 5 m/s bounces elastically into a 2nd ball of mass 50 g.What are the final velocities and momentum of each ball?

Which of the following is a unit of impulse? A) N.s B)kg.m/s^2 C)N.m D)N/s E) N/m