Question

using two spring scales, students pull on opposite sides of a dynamic cart at rest. 7 newtons of force is pulling left and 5 newtons force is pulling right. describe the motion of the cart? a the cart will move to the right. b the cart will move to the left. c the cart will not move. d the cart will move up.

Explanation:

Step1: Determine net - force direction

The force pulling left is 7 N and the force pulling right is 5 N. Since 7N>5N, the net force is to the left.

Step2: Apply Newton's second law

According to Newton's second law, a non - zero net force causes acceleration in the direction of the net force. So the cart will move in the direction of the net force.

Answer:

B. The cart will move to the left.