Question

task 2
a. place 2 people that are the same size different distances away from the cart.
b. make a prediction about the movement of the cart.
c. after you have observed the actual movement, click on the sum of the forces box at the top right hand corner of the simulation. record the number in the data chart.

same size, different placement on rope.	predicted movement	actual movement (none, left, right)	sum of forces (0, x - left, x - right)

Explanation:

This is a force and motion experiment. When two people of the same size pull a cart from different positions on the rope, the person closer to the cart exerts a greater effective horizontal force. The cart will move toward the person closer to it (right, as per the diagram). The sum of forces will be a net force to the right, since the closer person's horizontal component is larger.

Answer:

Predicted Movement	Actual Movement	Sum of Forces