Q: An object at a height of 15 m above the ground is travelling at 25m/s. Find its(adsbygoogle = window.adsbygoogle || []).push({});

a) kinetic energy

b) gravitational energy

If I find out how to do (a), I am sure I will figure out B. The problem is I don't know how to figure out (a)

I know that Kinetic Energy = 1/2 mass (speed)^2

I also know that work = (change of kinetic energy)

Both these formulas involve masses. How do you solve?

I do know that masses cancel out when you are dealing with the law of conservation of energy, but I am only determining the energy at this specific point. Help.

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# Homework Help: Kinetic and gravitational energy

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