Bill forgets to put his car in park, and it starts rolling forward. When it is moving at a speed of 2 m/s, it collides with Tanya's car, which is moving 3 m/s backward. Bill's car bounces backward at a speed of 1.2 m/s. Bill's car has a mass of 1100 kg and Tanya's car has a mass of 800 kg. a. What is the velocity of Tanya's car after the collision? b. Assuming all lost kinetic energy is converted to heat, how much energy is converted to heat during the collision?

8. A machine gun is attached to a railroad flatcar, at rest, that can roll with negligible friction. If the railroad car (including the machine gun) has a mass of 6.25 x 104 kg, how many bullets of mass 25 g would have to be fired at 250 m/s off the back to give the railroad car a forward velocity of 0.5 m/s? A. 1000 bullets B. 2000 bullets C. 3000 bullets D. 4000 bullets E. 5000 bullets

A 20 g ball of clay travelling west at 2.5 m/s collides with a 30 g ball of clay travelling south at 4.0 m/s. What are the speed and direction of the resulting 50 g of clay?

You are standing at a stop light waiting to cross the street when you witness a collision. A 2,300 kg Ford F150 truck collides head on with a 1,300 kg Toyota Corolla. The Ford F150 is moving to the right immediately before the collision and the Corolla is initially moving to the left. The two vehicles have the same initial speed and vehicles stick together after the collision. A. What type of collision is this? B. Which vehicle will experience the greater change in momentum? C. Which vehicle will experience the greater acceleration?

if a stationary 3.2 obect explodes so that: a. one part that is 1.5 kg goes left with 2.6 m/s , what is the mass and velocity of the other part? b. One part that is 1.0 kg goes North at 3.4 m/s and one part that is 1.2 kg goes West at 3.0 m/s, what is the mass and velocity of the third part?

Suppose you are navigating a spacecraft far from other objects. The mass of the spacecraft is 3.0 x 104 kg (about 30 tons). The rocket engines are shut off, and you're coasting along with a constant velocity of km you briefly fire side thruster rockets, so that your spacecraft experiences a net force of N for 20 s. The ejected gases have a mass that is small compared to the mass of the spacecraft. You then continue coasting with the rocket engines turned off. Where are you an hour later? (Think about what approximations or simplifying assumptions you made in your analysis. Also think about the choice of system: what are the surroundings that exert external forces on your system?) Additional Materials eBook m

Alex Morgan, one of America's best forwards, kicks a 450. g soccer ball that was moving towards her at a speed of 12.0m/s, the impact caused the ball to leave her foot with a velocity of 20.0 m/s in the opposite direction. a. If the impact lasted for 0.250s, what force (magnitude and direction) did Alex exert on the soccer ball? b. What is one thing that she could do to make the soccer ball have a larger change in momentum?

A non-BYU Idaho student is having a snow ball fight. 'Accidentally' a snowball travelling north at 10.0 m/s hits a bicyclist traveling west at 5.00 m/s. The mass of the snowball is 0.750 kg, and the bicyclist is 55.0 kg. What is her final velocity, a. If the snow ball sticks to the bicyclist? b. If the snow ball bounces off with a speed of 2.0 m/s at an angle 20.0° West of South?

Two carts on a track are headed toward each other, and have a head-on collision.Cart 1 has a mass of 2 kg and is traveling at 3 m/s, and Cart 2 has a mass of 3 kgand is traveling at 1.5 m/s. After the collision, Cart 2 has a speed of 0.75 m/s inthe opposite direction it was originally traveling.a. What is the speed and direction of cart 1 after the collision?b. What is the change in energy during this collision? Is it elastic?c. What type of collision is it?

A 1600 kg car traveling at 20.0 m/s collides with a 2200 kg car travelling in the same direction 14.0 m/s. The two cars stick, together after the collision. a. What is the speed of the two cars after the collision? b. How much energy is lost in the collision?