A 1200 kg car is moving east at 30 m/s and collides with 3600 kg truck moving at 20 m/s in a direction 60 degrees north of east. The vehicles interlock and move off together. Find their common velocity after the collision. The correct answer is 19.8 m/s

Two cars approach an ice-covered intersection. One car, of mass 1.10  103 kg, is initially traveling north at 10.1 m/s. The other car, of mass 1.55  103 kg, is initially traveling east at 10.1 m/s. The cars reach the intersection at the same instant, collide, and move off coupled together. Find the velocity of the center of mass of the two-car system just after the collision. Magnitude:

A 62.0 kg ice hockey goalie, originally at rest, catches a 0.150 kg hockey puck slapped at him at a velocity of 20.0 m/s. Suppose the goalie and the ice puck have an elastic collision and the puck is reflected back in the direction from which it came. What would their final velocities (in m/s) be in this case? (Assume the original direction of the ice puck toward the goalie is in the positive direction. Indicate the direction with the sign of your answer.)   puck _______________ m/s   goalie ______________ m/s

A 1055 kg van, stopped at a traffic light, is hit directly in the rear by a 690 kg car traveling with a velocity of +2.45 m/s. Assume that the transmission of the van is in neutral, the brakes are not being applied, and the collision is elastic. What is the final velocity of each vehicle?(a) car m/s(b) van m/s

Two ice skaters, Daniel (mass 65.0 kg) and Rebecca (mass 45.0 kg), are practicing. Daniel stops to tie his shoelace and, while at rest, is struck by Rebecca, who is moving at 14.0 m/s before she collides with him. After the collision, Rebecca has a velocity of magnitude 7.00 m/s at an angle of 55.1° from her initial direction. Both skaters move on the frictionless, horizontal Part A What is the magnitude of Daniel's velocity after the collision? surface of the rink. Express your answer meters per second. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Collision in a horizontal plane. ? m/s Submit Request Answer Part B What is the direction e Daniel's velocity after the collision? Express your answer in degrees. ° from the Rebecca's original direction Submit Request Answer Part C What is the change in total kinetic energy of the two skaters as a result of the collision? Express your answer in joules. MacBook Air esc 888 F1 DII DD F2 F3 F4…

Brad (mass 75.0 kg) and Janet (mass 60.0 kg) are doing a pairs figure skating routine on ice. Brad is moving at 5.63 m/s to the east, and Janet is moving at 7.20 m/s to the north. The two skaters meet up and join hands, skating together afterward. What is the pair's velocity after they join hands? 4.47 m/s, 45.7° north of east 2. 5.08 m/s, 42.9° north of east 3. 3.52 m/s, 36.8° north of east 4 6.37 m/s, 52.6° north of east

A 83.8-kg boy and a 59.4-kg girl, both wearing skates face each other at rest on a skating rink. The boy pushes the girl, sending her to the left with a velocity of -2.72 m/s. Neglecting friction, determine the subsequent velocity of the boy to the right. Answer: + m/s

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…

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A 55.0 kg boy runs at a speed of 16.0m/s and jumps onto a cart that is initially at rest. The boy and the cart then move off together at a speed of 2.50m/s. What is the mass of the cart?