A kid applies a force of 70 N to a ball over 1.1 meters. How much work did he do on the ball?
To determine the work done on the ball, we need to use the formula for work:
Work = Force × Distance × cos(θ)
In this case, the force is given as 70 N, and the distance is 1.1 meters. However, we don't have information about the angle (θ) between the force and the direction of motion. Assuming the force is applied parallel to the direction of motion, the angle would be 0 degrees, and cos(0°) = 1.
So, substituting the given values into the formula:
Work = 70 N × 1.1 m × cos(0°)
= 70 N × 1.1 m × 1
= 77 Joules
Therefore, the kid did 77 Joules of work on the ball.