If two objects of different mass have the same non-zero momentum,A.the one with less mass will have the greater kinetic energy.B.the one with more mass will have the greater kinetic energy.C.they will have the same kinetic energy.D.the one with the higher speed will have the greater mass.E.the one with the lower speed will have the greater kinetic energy.
A car traveling at 60 km/hr passes a truck going 30 km/hr that has four times the mass of the car. Which of the following is true?A.The car and the truck have the same momentum and the same kinetic energy.B.The car has the same momentum and twice as much kinetic energy as the truck.C.The car has the same momentum and four times as much kinetic energy as the truck.D.The car has the same kinetic energy and twice as much momentum as the truck.E.The car has the same kinetic energy and half as much momentum as the truck.