Calculate the net momentum of A and B. Include direction. Round to the
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- A 60 g tennis ball lands on the racket of a player with the speed of 108 km/h, and the player returns the ball with a speed of 90 km/h. the ball has been in contact during 0.2 s with the racket of the player. Determine: The change in momentum during the return of the ball The average force deployed by the player to return the balld) In a collision between two objects where the objects only interact with each other, is momentum sometimes or always conserved, and is kinetic energy sometimes or always conserved? If it is sometimes, be clear on when it is conserved.in a cheerleading competition, a 65 kg cheerleader is tossed vertically upward with a speed of 3.75 m/s. b) Determine the time she was caught by the catchers by slightly moving her down, given that the cheerleader's change in momentum is −448 kg⋅ms.
- help please If a 10 kg bowling ball, moving at 8 m/s to the right, hits and bounces off a second bowling ball with a mass of 14 kg , moving at 9 m/s to the left, find the magnitude of the final speed of the second ball.help If a 1461 kg car, moving at 10 m/s north, hits and sticks to a 2639 kg truck, moving at 7 m/s east, find the magnitude of the final speed.3) A 1000 kg car is traveling due east with a speed of 10 m/s. A 1500 kg truck is traveling due north at a speed of 15 m/s. These cars undergo a purely inelastic collision. a) Is the linear momentum of the system conserved in this collision? What does this tell you about the net external force on this system? Explain your answer(s). b) Find the speed and direction of the masses just after collision. c) Is the kinetic energy of the system conserved? Verify your answer by calculating the initial and final kinetic energies. d) If the cars slide to a stop in 25 meters after they collide, how much work was done by friction? What was the average force of friction needed to bring the cars to rest? e) What impulse was delivered to the cars by the road? How long (in time) did it take for the cars to come to rest?
- A 200 kg cannon rests on a smooth surface. It fires a 10 kg cannonball in horizontal direction. The cannonball moves with a velocity of 200 m/s measured relative to the cannon right after the firing. Determine the speed of the cannon after the fire.Find the magnitude and direction of the net momentum of the system showsn in the figure. Express the direction by giving the angle the net momentum makes with the +x-axis.A green toy car with 0.025-kg mass moves to the right at 0.30 m/s and has a head-on, elastic collision with a black 0.045-kg toy car which is at rest on a smooth, level surface. Which of the following are the correct magnitudes and directions of the velocities of the two toy cars after the collision? 0.025 kg toy car 0.045 kg toy car A) 0.09 m/s, left 0.21 m/s, right B) 0.10 m/s, right 0.30 m/s, right C) zero m/s 0.25 m/s, right D) 0.20 m/s, left 0.20 m/s, right E) 0.20 m/s, left zero m/s A В B E (c) с A E) D
- A 50.0 kg penguin is skiing, her velocity is facing north at 5.0 m/s. She runs into a 28.0 kg sea lion. After they are moving together at (velocity) of 2.0 m/s with an angle of 40 degrees north of east. Find the magnitude of the sea lions velocity before the accident?Q5. As shown in the image below, the freight cars A and Bare approaching each other, and they have a mass of mA = 19 Mg and mB = 12 Mg, respectively. The directions of their initial velocities are shown in the image, and the speeds are VA,1 = 4.7 m/s and vB,1 = 1.2 m/s. If the two cars collide and get stuck together, determine the loss of their combined kinetic energy (in kJ) during the collision. Please pay attention: the numbers may change since they are randomized. Your answer must include 1 place after the decimal point, and proper SI unit. VA,1 A VB,1 В Your Answer: AnswerMr. M is floating in space. He turn to find Mrs. M also floating is space. They face each other. As you may have guessed, Mr. M then pushes on Mrs. M, and the both travel in opposite directions. What will the sum of their momentums be after the push AND why?