Answer:
510.6 W
Explanation:
The rate at which the force does work is called power therefore it is given by:
[tex]P=\frac{\Delta W}{\Delta t}[/tex]
The instantaneous power applied on a rigid solid is given by the product of the constant force applied over the solid's velocity.
[tex]P=F\cdot v\\P=Fvcos\theta[/tex]
Here [tex]\theta[/tex] is the angle between the force and the velocity.
[tex]P=138N(7.4\frac{m}{s})cos(36^\circ)\\P=510.6W[/tex]
