Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are moving toward one another, the first having a mass of 140,000 kg and a velocity of 0.300 m/s, and the second having a mass of 135,000 kg and a velocity of −0.120 m/s. (The minus indicates direction of motion.) What is their final velocity (in m/s)? (Enter a number.)  m/s

A force of 33.5 N acts on a mass changing its momentum by 43.13 kg m/s.  What is the time during which the force is in contact with the mass?

A toy train engine (3.4 kg) is moving 0.25_m/s to the right when it collides with a train car (3.9.kg) moving 0.15 m/s in the opposite direction, and they stick together. Find the velocity of the engine-car combination as they move off together. Assume "to the right" is the positive direction. 0.04319_m/s В. 0.05252_m/s 0.0687_m/s 0.04904 m/s 0.03505_m/s F. А. D. Е. С. 0.0363_m/s

Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are moving toward one another, the first having a mass of 170,000 kg and a velocity of 0.300 m/s, and the second having a mass of 105,000 kg and a velocity of -0.120 m/s. (The minus indicates direction of motion.) What is their final velocity (in m/s)? 38400 X m/s Additional Materials O Reading

Problem 3: A boy of mass m = 48 kg moves at a velocity V¡ = 1.55 m/s before hopping on a skateboard. After hopping on the board the boy has a velocity vf= 1.44 m/s. What is the mass of the skateboard, in kilograms? Numeric : A numeric value is expected and not an expression. mp =

You are sitting in a sled, at rest on a pond covered with nice, thick, frictionless ice. Your own mass is 76.3 kg, and the sleds mass is 10.8 kg. The sled is moving by itself on the ice at 3.07 m/s. You parachute vertically down onto the sled, and land gently. What is the sleds velocity with you now on it?     0.49 m/s     0.44 m/s     0.38 m/s     0.23 m/s

A truck moving to the right with 1549.01549.0 kg·m/s of momentum strikes a bike moving to the left with 128.0128.0 kg·m/s of momentum in a head-on collision. Assuming that the truck and the bike move together as one object after the collision, what is their combined momentum after the collision?

Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are moving toward one another, the first having a mass of 180,000 kg and a velocity of 0.300 m/s,and the second having a mass of 95,000 kg and a velocity of −0.120 m/s. (The minus indicates direction of motion.) What is their final velocity (in m/s)? m/s

The figure below is for a 50 kg object v(m/s) 100.0 80.0 60.0 40.0 20.0 2.0 4.0 t(s) Find the acceleration. Find the net force. Find the velocity at t= 2.25 s. Find the momentum at t = 2.25 s. Find the displacement at t = 2.25 s.

Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are moving toward one another, the first having a mass of 170,000 kg and a velocity of 0.300 m/s, and the second having a mass of 135,000 kg and a velocity of -0.120 m/s. (The minus indicates direction of motion.) What is their final velocity?