James and Sarah stand on a stationary cart with frictionless wheels. The total mass of the cart and riders is 130 kg. At the same instant, James throws a 1.5 kg ball to Sarah at 4.1 m/s , while Sarah throws a 0.32 kg ball to James at 1.1 m/s . James’s throw is to the right and Sarah’s is to the left, both speeds are measured relative to the ground.
While the two balls are in the air, what are the speed and direction of the cart and its riders? Consider direction to the right as the positive direction and pay atention to the sign of your answer.
After the balls are caught, what is the speed o

Question

James and Sarah stand on a stationary cart with frictionless wheels. The total mass of the cart and riders is 130 kg. At the same instant, James throws a 1.5 kg ball to Sarah at 4.1 m/s , while Sarah throws a 0.32 kg ball to James at 1.1 m/s . James’s throw is to the right and Sarah’s is to the left, both speeds are measured relative to the ground.
While the two balls are in the air, what are the speed and direction of the cart and its riders? Consider direction to the right as the positive direction and pay atention to the sign of your answer.
After the balls are caught, what is the speed o

raffle_snaffle · Answer

Draw a picture. What is key to these type of question is to draw pictures.