Respuesta :
The work done to drag the box is 9 J.
Explanation:
Work done is the measure of force required to displace a certain object to a certain distance. So it can be measured as the product of force with displacement along with the angle in which the displacement is made.
As here the force acting on the box is said to be 75 N. And as it is moved horizontally in an angle of 36°. It is also said that the box is displaced by 150 m.
So, the work done will be
[tex]W=F*d * cos \alpha[/tex]
So α is the angle, F is the force, d is the displacement and W is the work done.
[tex]W = 75 * 150 * cos 36 =9 J[/tex]
So, the work done to drag the box is 9 J.
The work done on the box is 9000 J
Explanation:
Given:
Force, F = 75N
Angle, θ = 36°
Distance, x = 150m
Horizontal force = F cosθ
              = F cos36°
              = 75 X 0.8
              = 60N
Work = Force X distance
Work = 60 X 150m
Work = 9000 J
Therefore, work done on the box is 9000 J
