Calculating Power Output of a Weightlifter

[lonlyincolleg]

Homework Statement

A weightlifter is able to lift 250 kg 2.00m, in 2.00s. What is his power output?

Homework Equations

W=M x N
P = W/Change t

The Attempt at a Solution

250 x 2 = 500 (I thought that this was work) so then I divided by time (2.00s) to get power. The answer is not right. It should be 2.45 kW. Please tell me what I am doing wrong.

 

[AstroRoyale]

Work = m*g*h, you missed a "g" in there, so you are off by a factor of 9.81

 

[lonlyincolleg]

I got it. thank you!