Answer:
150W
Explanation:
Given parameters:
Time taken = 5s
Mass of box = 60kg
Speed = 5m/s
Unknown:
Power produced = ?
Solution:
To solve this problem, we must understand what power is.
Power is the rate at which work is done.
Power = [tex]\frac{work done }{time}[/tex]
Work done = force x distance = kinetic energy = [tex]\frac{1}{2} m v^{2}[/tex]
= [tex]\frac{1}{2}[/tex] x 60 x 5²
= 750J
Therefore power:
Power = [tex]\frac{750}{5}[/tex]
= 150W
