Students are using the experimental setup shown in the image in which the two ends of a string are attached to a car and to a hanger The students conduct three trials in which they place metal discs on the hanger to manipulate the force applied to the
car As a result, the car accelerates along the table while two probes collect motion data
On the fourth thal of this experiment, a student places some discs on the car by mistake in 1-2 sentences, explain how this
mistake will affect the graphs produced by the computer
(2 points)

On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)