B
beesterfield
Guest
I have a worksheet on momentum and I don't really know how to get the answers. Can someone help me?
**Assume to the right is a positive direction and to the left is negative**
1) A 0.500 kg cart is moving to the right at 3 m/s. It hits and sticks to a 0.250 kg cart that was stationary. How fast do both cars move?
2) A 0.750 kg cart is sitting next to a 0.250 kg cart. The 0.750 kg cart is on the left. The 0.750 kg cart (using the spring) pushes off the other cart at 2 m/s. What is the velocity of each cart (don't forget signs)?
3) A 1.0 kg cart is moving to the right at 2 m/s while a 0.500 kg cart is moving to the left at 2 m/s. The two carts collide and stick together. What is the velocity of both cars after the collision?
4) A 0.500 kg cart is moving to the right at 3 m/s while a 1.0 kg cart is moving to the left at a velocity of 2 m/s. They collide and bounce off of each other. The 0.500 kg cart ends up going 4 m/s to the left. What happens to the 0.750 kg cart?
5) A train is being put together from freight cars. An empty freight car, coasting at 10 m/s, strikes a loaded car that is stationary, and the loaded cars couple together. Each of the cars has a mass of 3000 kg when empty, and the loaded car contains an additional 12,000 kg of puppies. With what speed does the combination of the two cars start to move?
6) An astronaut whose mass is 80.00 kg carries an empty oxygen tank with a mass of 10.00 kg. He throws the tank away from himself with a speed of 2.0 m/s. With what velocity does he start to move off into space?
7) A 1000 kg car is skidding on ice at a constant velocity of 15 m/s. It strikes another car (2000 kg) that has stalled (stopped) on the frictionless ice. If the collision causes the 1000 kg car to stop how fast does the 2000 kg car go? It is a good thing that both cars have super rubbery bumpers and nod damage is done to the cars.
**Assume to the right is a positive direction and to the left is negative**
1) A 0.500 kg cart is moving to the right at 3 m/s. It hits and sticks to a 0.250 kg cart that was stationary. How fast do both cars move?
2) A 0.750 kg cart is sitting next to a 0.250 kg cart. The 0.750 kg cart is on the left. The 0.750 kg cart (using the spring) pushes off the other cart at 2 m/s. What is the velocity of each cart (don't forget signs)?
3) A 1.0 kg cart is moving to the right at 2 m/s while a 0.500 kg cart is moving to the left at 2 m/s. The two carts collide and stick together. What is the velocity of both cars after the collision?
4) A 0.500 kg cart is moving to the right at 3 m/s while a 1.0 kg cart is moving to the left at a velocity of 2 m/s. They collide and bounce off of each other. The 0.500 kg cart ends up going 4 m/s to the left. What happens to the 0.750 kg cart?
5) A train is being put together from freight cars. An empty freight car, coasting at 10 m/s, strikes a loaded car that is stationary, and the loaded cars couple together. Each of the cars has a mass of 3000 kg when empty, and the loaded car contains an additional 12,000 kg of puppies. With what speed does the combination of the two cars start to move?
6) An astronaut whose mass is 80.00 kg carries an empty oxygen tank with a mass of 10.00 kg. He throws the tank away from himself with a speed of 2.0 m/s. With what velocity does he start to move off into space?
7) A 1000 kg car is skidding on ice at a constant velocity of 15 m/s. It strikes another car (2000 kg) that has stalled (stopped) on the frictionless ice. If the collision causes the 1000 kg car to stop how fast does the 2000 kg car go? It is a good thing that both cars have super rubbery bumpers and nod damage is done to the cars.