Find Weight of 800 kg Turtle Raised 5.45 m

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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?
 
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duckywucky said:

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