Find the recoil velocity of a 70 kg hockey goalle, originally at rest, who catches a 0.150 kg hockey puck slapped at him at a velocity of 35 m/s: (b) How much kinetic energy is lost during the collision? Assume friction between the ice and the puck-goalle system is negligible

During a circus act, a performer thrills the crowd by catching a cannon ball shot at him. The cannon ball has a mass of m1 = 8.5 kg and the horizontal component of its velocity is v = 8.25 m/s when the performer, of mass m2 = 70.5 kg, catches it. a)If the performer is on nearly frictionless roller skates, enter an expression for his recoil speed, in terms of the masses and initial speed.  v' =

Carry Collision Insurance! A 1,906 kg car stopped at a traffic light is struck from the rear by a 953-kg car. The two cars become entangled, moving along the same path as that of the originally moving car. If the smaller car were moving 26.7 m/s before the collision, what is the velocity of the entangled cars after the collision? (Assume the smaller car initially moves in the positive direction.) SOLUTION Conceptualize This kind of collision is easily visualized, and one can predict that after the collision both cars will be moving in the same direction as that of the initially moving car. Because the initially moving car has only half the mass of the stationary car, we expect the final velocity of the cars to be relatively Categorize We identify the two cars as an isolated system in terms of momentum in the horizontal direction and apply the impulse approximation during the short time interval of the collision. The phrase "become entangled" tells us to categorize the collision as…

A 1500 kg car traveling eastwards at 25 m / s collides with a 2500 kg load truck going north at a speed of 20 m / s as shown in the figure. Find out the magnitude and direction of the speed of the wreck after the collision, taking into account that the vehicles had a completely inelastic collision.