Power Output Problem: Help Solving Rope Climb Challenge

[bulldog23]

Homework Statement

In the rope climb, a 68.4kg athlete climbs a vertical distance of 4.76m in 8.38s. What minimum power output was used to accomplish this feat?

Homework Equations

P_av=delta W/delta t
P=dW/dt
P=F*v

The Attempt at a Solution

Can someone help me get started on this problem, I don't know where to begin?

 

[learningphysics]

Find the change in energy... use gravitational potential energy... then divide by time to get power.

 

[bulldog23]

How do you figure out gravitational potential energy?

 

[learningphysics]

How do you figure out gravitational potential energy?

gravitational potential energy = mgh

 

[bulldog23]

Oh ok, thanks man!