8. On a frictionless air track, a 0.15 kg glider moving to the right collides with and sticks to a stationary
0.25 kg glider. The net momentum of this system after the collision is 0.18 kg. m/s. What is the
speed of the gliders after the collision?

0.45 m/s

0.97 m/s

0.66 m/s

1.32 m/s

F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?