Use the image to answer the question below.

In the experimental setup shown, a car has one end of a string attached to it, and the other end is attached to a fixed number of metal discs. The car moves along the table and two probes sense the motion of the car. The probes send information to a computer that displays the acceleration and velocity of the experiment. When looking at these results, which quantity stays constant during the trials?



A car at the one end of the table is tied to a hanger at the other end of the table using a string and a pully. The hanger is hanging over the side of the table while the car is placed flat on the surface of the table. The hanger can support the metal discs. A ruler, a laptop, and other equipment are also placed on the table.


(1 point)
Responses

velocity
velocity

force
force

mass
mass

acceleration

force