answer
200J
explanation
Work Calculation Requested.
The amount of work done by the construction worker can be calculated using the formula:
Work = Force x Distance x Cosine(angle)
Where:
Force is the amount of force applied by the construction worker, which is 10 kg in this case.
Distance is the distance over which the force is applied, which is 20 meters in this case.
Cosine(angle) is the cosine of the angle between the direction of the force and the direction of motion of the object being moved. Since the direction of the force is assumed to be parallel to the direction of motion in this case, the angle between them is zero and the cosine of zero is 1.
Therefore, the work done by the construction worker is:
Work = 10 kg x 20 m x 1
Work = 200 Joules
So the construction worker does 200 Joules of work to carry the lumber for a house 20 meters away, assuming the force is applied parallel to the direction of motion.
chatgpt