arwen08 arwen08

30-01-2017
Mathematics

contestada

a car is traveling at 30 m/s with a kinetic energy of 900 J. What is it's mass?

Respuesta :

kenzieofficial kenzieofficial

30-01-2017

you can use the equation: kinetic energy=mass/2*speed^2

so 900=m/2*30^2

when you solve it you get m=2.

This means the mass of the car is 2kg

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