A Car of 1200 kg is traveling in a circle of radius 70 and is traveling at a speed of 15 What is the required centripetal force needed so that the car will stay in the circular path?

What would happen if the car was traveling faster The needed centripetal force would be (choose from the same, greate, or less)

On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?