An ice hockey forward with mass 70.0 kg is skating due north with a speed of 5.5 m/s. As the forward approaches the net for a slap shot, a defensive player (mass 110 kg) skates toward him in order to apply a body-check. The defensive player is traveling south at 4.0 m/s just before they collide. If the two players become intertwined and move together after they collide, in what direction and at what speed do they move after the collision? Friction between the two players and the ice can be neglected.

A 5.40 kg bowling ball moving at 8.70 m/s collides with a 0.850 kg bowling pin, which is scattered at an angle of 37.0° to the initial direction of the bowling ball with a speed of 12.0 m/s. (Assume the bowling ball is initially moving in the +x-direction and the given angle is measured below the +x-axis. Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) (a) Calculate the final velocity (magnitude in m/s and direction in degrees counterclockwise from the +x-axis) of the bowling ball. magnitude m/s direction ° counterclockwise from the +x-axis (b) Is the collision elastic? (Assume the initial and final kinetic energies are equal if they are within 5% of each other.) Yes O No

At the intersection of Texas Avenue and University Drive, a yellow, subcompact car with mass 950 kg traveling east on University collides with a maroon pickup truck with mass 1700 kg that is traveling north on Texas and ran a red light (Figure 1). The two vehicles stick together as a result of the collision and, after the collision, the wreckage is sliding at 16.0 m/s in the direction 24.0° east of north. The collision occurs during a heavy rainstorm; you can Part A Calculate the speed of the car before the collision. Express your answer in meters per second. ignore friction forces between the vehicles and the wet гoad. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of An automobile collision. ? v = m/s Figure (< 1 of 1 Submit Request Answer y (north) Part B 24.0° Calculate the speed of the truck before the collision. 16.0 m/s Express your answer in meters per second. -x (east) ? m/s

Collision: Two motion carts are headed for an inelastic collision! One cart has a mass of 3.23 kg and is moving to the right at a speed of 2.97 m/s. The other cart has a mass of 12.39 kg and is moving to the left at a speed of 0.03 m/s. The two carts collide and stick together. (a) What is the final velocity (speed and direction) of the gliders? (b) What percent of the initial kinetic energy was converted to other forms – i.e., "lost" – in this collision?

Standing and facing each other, two hockey players push off and move in opposite directions. The second player, of mass m₂ = 58 kg, acquires a speed of v2 = 0.32 m/s. Find the speed of first player if m₁ = 25 kg. V1 = m/s

A 81.7 kg linebacker (X) is running at 7.31 m/s directly toward the sideline of a football field. He tackles a 98.2 kg running back (O) moving at 9.05 m/s straight toward the goal line, perpendicular to the original direction of the linebacker. As a result of the collision, both players momentarily leave the ground and go out‑of‑bounds at an angle ? relative to the sideline, as shown in the diagrams. Before impact After impact images below What is the common speed ?f of the players immediately after their impact? ?f=   m/s   What is the angle ? of their motion relative to the sideline? ?=  °

Two trucks are approaching an extremely icy four way perpendicular intersection. Dennis is driving his 3100 kg truck northward at 22 m/s while Eddie drives eastward in his 1100 kg car. They collide and stick together, traveling at 59◦ north of east. What was Eddie’s original speed?

In the game of medicine-ball-on-ice, players pass around a medicine ball while they are on ice, which can be assumed to be a frictionless surface. During a game, a 20 kg medicine ball  travelling horizontally west at 20 km/h is caught and held by a 50 kg player, who is initially at rest. What is the velocity of the player after she catches the medicine ball?

The mass of a regulation tennis ball is 57.0 g (although it can vary slightly), and tests have shown that the ball is in contact with the tennis racket for 30 ms. (This number can also vary, depending on the racket and swing.) We assume a 59.0 g ball and a 26.0 ms contact time in this problem. In the 2011 Davis Cup competition, Ivo Karlovic made one of the fastest recorded serves in history, which was clocked at 156 mi//h (70 m/s). Part A: What impulse did Karlovic exert on the tennis ball in his record serve? Take the +x direction to be along the final direction of motion of the ball. Part B: What average force did Karlovic exert on the tennis ball in his record serve? Part C: If his opponent returned this serve with a speed of 55.0 m/s, what impulse did his opponent exert on the ball, assuming purely horizontal motion? Take the +x direction to be in the direction the ball is traveling before it is hit by the opponent. Part D: If his opponent returned this serve with a speed of 55.0…

A car with a mass of 980 kg is initially traveling east toward an intersection with a speed of vc = 20.2 m/s and a 1500 kgpickup is traveling north toward the same intersection. The car and truck collide at the intersection and stick together. After the collision, the wreckage (car and truck) moves off in a direction of 43.0° above the x-axis. Determine the initial speed of the truck and the final speed of the wreckage in meters per second. initial speed of the truck m/sfinal speed of the wreckage m/s