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An object is moving with a speed of 20.msand has 400 J of kinetic energy.
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An object is moving with a speed of 20.msand has 400 J of kinetic energy.

User Ian Gilham
by
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1 Answer

9 votes

Answer:

2kg mass

Step-by-step explanation:

I have a feeling that your question is complete. seems like you are asking what is the mass of the object.

E.k.= 1/2 * mv²

400 = 1/2 * m* 20²

400 = 200m

m = 2 kg

User Antonis Radz
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5.4k points
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