Respuesta :
Work has the greatest value when the force done is parallel to the direction of motion. In this case, the work done in pulling the wagon to the corner is greater than the amount of work done in pulling the wagon back to the starting point. This is because an angle of 30 degrees is applied when pulling it back. The formula for work when angle is applied is:
Wx = W cos θ
Where in this case, θ = 30
Therefore, the answer to this is letter:
C) he does less work coming back because the force moving the wagon is only 50cos30