QI Demos: A blue cart with 2 steel bars and a red cart with I steel bar The blue cart collides with the red cart while the red cart is at rest In Demo 1, the carts stick together and move at a certain final speed vi In Demo 2, the carts do not stick together. The red cart moves at a final speed v2, which is faster than vi A physics student sees these demos and makes the following argument to explain why v2 is faster than vi. Student 1: If the system is only the red cart, then the blue cart exerts an outside force and causes an impulse on the system. The impulse exerted by the blue cart must be bigger in Demo 2, therefore the red cart has a faster final velocity in Demo 2 (a) Do you agree with Student I's argument for why vz is greater than vi? Explain why you do or do not agree in a brief paragraph that justifies or refutes Student I's claims using physics principles and logical reasoning; do not merely restate the student's claims. If a claim is correct explain why and how you know. If a claim is incorrect explain why it is wrong and how to make it correct. (MAKE BAR CHARTS- BAR CHARTS ALWAYS HAVE A QUADRANT 1 AND QUADRANT 4)

QI Demos: A blue cart with 2 steel bars and a red cart with I steel bar The blue cart collides with the red cart while the red cart is at rest In Demo 1, the carts stick together and move at a certain final speed vi In Demo 2, the carts do not stick together. The red cart moves at a final speed v2, which is faster than vi A physics student sees these demos and makes the following argument to explain why v2 is faster than vi. Student 1: If the system is only the red cart, then the blue cart exerts an outside force and causes an impulse on the system. The impulse exerted by the blue cart must be bigger in Demo 2, therefore the red cart has a faster final velocity in Demo 2 (a) Do you agree with Student I's argument for why vz is greater than vi? Explain why you do or do not agree in a brief paragraph that justifies or refutes Student I's claims using physics principles and logical reasoning; do not merely restate the student's claims. If a claim is correct explain why and how you know. If a claim is incorrect explain why it is wrong and how to make it correct. (MAKE BAR CHARTS- BAR CHARTS ALWAYS HAVE A QUADRANT 1 AND QUADRANT 4)