Find Weight of 800 kg Turtle Raised 5.45 m

[duckywucky]

Homework Statement

The largest turtle ever caught in the US had a mass of over 800 kg. Supoose this turtle were raised 5.45 m onto the deck of the research ship. If it takes 4.60 x 10^4 J of work to lift the turtle this distance at a constant velocity, what is the turtle's weight?

Homework Equations

The Attempt at a Solution

Weight's measured in N.
so what formula would you use?
Δ(KE) = 1/2 mv^2?

 

[Spinnor]

Homework Statement

The largest turtle ever caught in the US had a mass of over 800 kg. Supoose this turtle were raised 5.45 m onto the deck of the research ship. If it takes 4.60 x 10^4 J of work to lift the turtle this distance at a constant velocity, what is the turtle's weight?

Homework Equations

The Attempt at a Solution

Weight's measured in N.
so what formula would you use?
Δ(KE) = 1/2 mv^2?

Assume the turtle is lifted at a very slow speed. The change in energy is all a change in potential energy which is

m*g*h = 4.60 x 10^4 J