msali0315 msali0315

23-05-2017
Physics

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A car moving with a velocity of 20 meters/second has 1.8 × 105 joules of kinetic energy. What is the mass of the car?

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kkeaeman kkeaeman

24-05-2017

V = 20 m/s
Ecin = 1.8 x 10^5 J

Ecin = m*v^2/ 2
1.8*10^5 = m*400/2
200m = 1.8*10^5

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