a mass m has velocity vo at time t = 0 and coasts along the x axis in a medium where the drag force is f(v) =-cu3/2 use the method of problem 2.7 to find u in terms of the time t and the other giveni parameters. at what time (if any) will it come to rest?

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?