Question

1. experiment: check that there are no fans on the cart. on the description tab, set the initial velocity of the cart to 2.0 m/s. select the bar chart tab, and click play. what do you notice about the velocity of the cart?

Explanation:

In the absence of external horizontal forces (no fans means no additional horizontal - acting forces), according to Newton's first law, an object in motion will maintain its state of motion. So the cart should move with a constant velocity.

Answer:

The velocity of the cart remains constant at 2.0 m/s.