Question

Grant and Mason are playing with a toy truck of mass m = 2 kg. Mason pulls on the truck to the right with a force of 25 N, and Grant pulls on the truck to the left with a force of 15N. As a result, the truck moves a distance of 2 m to the right a. Calculate the work done by Grant to the truck. b. Calculate the work done by Mason to the truck.

Answer 1

The work done by Grant on the truck is -30 J, and the work done by Mason on the truck is 50 J.

Step-by-step explanation:

To calculate the work done by Grant on the truck, we need to find the force exerted by Grant and multiply it by the distance moved by the truck. Grant pulls on the truck to the left with a force of 15 N, and the truck moves a distance of 2 m to the right. Since Grant is pulling in the opposite direction to the displacement of the truck, the work done by Grant is negative. Therefore, the work done by Grant is -15 N * 2 m = -30 J.

To calculate the work done by Mason on the truck, we follow the same steps. Mason pulls on the truck to the right with a force of 25 N, and the truck moves a distance of 2 m to the right. Since Mason is pulling in the same direction as the displacement of the truck, the work done by Mason is positive. Therefore, the work done by Mason is 25 N * 2 m = 50 J.