Question Car A of mass 5M collides with a smaller car of unknown mass on a slick road. Assuming the collision is perfectly inelastic, Car A was traveling at 40 m/s to the right, Car B 10 m/s to the left, and the wreckage at 21.25 m/s to the right, calculate the mass of Car B. Type your answer in in the form of a factor of M. (Ex: 0.5M, M, 2M, etc.) 18 of 22

A 1,105-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 8,900-kg trucl moving in the same direction at 20.0 m/s (see figure below). The velocity of the car right after the collision is 18.0 m/s to the east. +25.0 m/s +20.0 m/s +18.0 m/s Before After (a) What is the velocity of the truck right after the collision? (Round your answer to at least three decimal places.) 20.64 m/s (east) (b) How much mechanical energy is lost in the collision? 39045 X J

A girl weighing 540 N jumps from a tree, and her center of mass falls a vertical distance of 1.80 m. Find the impulse necessary to bring her to rest.Over what time interval must the deceleration last in order that the average force does not exceed 190 N? please solve

You were driving a car with velocity m/s. You quickly turned and braked, and your velocity became m/s. The mass of the car was 1200 kg. (a) What was the (vector) change in momentum Ap during this maneuver? Pay attention to signs. ap kg m/s (b) What was the (vector) impulse applied to the car? (vector) impulse: N.S (c) If the maneuver took 5 seconds, what was the the average (vector) force exerted on the car? (The net force is due to the ground and the Earth; the y components of these forces cancel.) net Additional Materials eBook

A child in a boat throws a 5.50-kg package out horizontally with a speed of 10.0 m/s. The mass of the child is 26.6 kg and the mass of the boat is 36.4 kg. Calculate the velocity of the boat immediately after, assuming it was initially at rest.Express your answer to three significant figures and include the appropriate units. Enter positive value if the direction of the velocity is in the direction of the velocity of the box and negative value if the direction of the velocity is in the direction opposite to the velocity of the box.

Please help with these two questions. Thank you. Please note that the answer "1,970" for one of the questions is correct, however, the answer "1,980" for the other question is incorrect, so that is mainly the question that I need help with.

Train cars are coupled together by being bumped into one another. Supposed to loaded train cars are moving toward one another, the first having a mass of 130,000 KG and the velocity of 0.300 M/S, and the second having a mass of 135,000 KG and I velocity of -0.120M/S. (The minus indicates direction of motion.) what is their final velocity? m/s ?

A rifle bullet with a mass of 10 g and moving with the speed of 300 m/s strikes and embeds itself in a block with a mass of 990 g that rests on a frictionless, horizontal surface and is attached to a coil spring. If the force constant of the spring is 300 N/m, a) calculate the common final velocity of block and bullet after the collision (in m/s). Enter the number up to ONE decimal place b) what is the maximum compression (in meters) of the spring? Enter the number up to THREE decimal places M