Respuesta :
Answer:
Average power output of athlete = 11025 Watts
Explanation:
Work done is defined as the product of force applied and the displacement perpendicular to the force.
Work = [tex]Force\times Displacement[/tex]
Power is defined as work done per unit time.
Power = [tex]\frac{Work done}{Time}[/tex]
Here the person lifts 900 kg.
Height = 2.5 m
Time interval = 2 seconds
Force = [tex]weight \times gravity[/tex]
= [tex]900 \times 9.8 [/tex]
= 8820 N
Work done = [tex]Force\times Displacement[/tex]
= [tex]8820 \times 2.5 [/tex]
= 22050 J
Power = [tex] \frac {22050}{2}[/tex]
= 11025 Watt
