kmagallanez1071 kmagallanez1071

06-03-2020
Chemistry

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3. A toy car is moving on a track at 4.0 m/s. If the toy car has 16 J of kinetic energy, what is the mass
of the car in kilograms?

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ednorobello92 ednorobello92

06-03-2020

Answer: m = 2 kg

Explanation: The kinetic energy of the toy car is expressed in

KE = 1/2mv².

To find the mass, we will derive the formula: m= 2KE/ v²

m = 2 ( 16 J) / (4m/s)²

= 2 kg

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