In which situation will two objects, each traveling with a speed of 2 m/s, have the greatest relative motion? a. the relative motion will be greatest when the objects are traveling in the same direction. b. the relative motion will be greatest when the objects are both traveling in the negative direction. c. the relative motion will be greatest when the objects are traveling in opposite directions. d. the relative motion will be greatest when one object comes to a stop and the other object continues to travel at 2 m/s.

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?