You carry a 20 n box 5 m horizontally across a room. The work you do is? Is 4 J correct?
To determine the work done while carrying the box, we can use the formula for work:
Work = Force × Distance × cos(theta)
Where:
- Force is the magnitude of the force applied (in this case, the weight of the box, which is equal to its mass times the acceleration due to gravity),
- Distance is the distance over which the force is applied (in this case, the horizontal distance of 5 m),
- Theta is the angle between the direction of the applied force and the direction of motion (since the force and motion are in the same direction, theta is 0).
Given that the weight of the box is 20 N and the distance is 5 m, we can calculate the work done:
Work = 20 N × 5 m × cos(0) = 20 N × 5 m × 1 = 100 J
Therefore, the correct answer is 100 J, not 4 J.