## A car is traveling at 33.2 m/s. If the car has a kinetic energy of 688,900 J, what is the car’s mass?​

Question

A car is traveling at 33.2 m/s. If the car has a kinetic energy of 688,900 J, what is the car’s mass?​

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1 year 2021-09-01T13:39:47+00:00 2 Answers 3 views 0

1250kg

Explanation:

$$\frac{688900}{33.2\\^{2} }$$ = 625

$$\frac{1}{2} m = 625$$

625 x 2 = 1250

Explanation:

Kinetic energy(ke)=688900j

Velocity(v)=33.2m/s

Mass(m)=?

ke=(mv^2)/2

688900=(mx(33.2)^2)/2

688900×2=mx1102.24

1377800=mx1102.24

m=1377800/1102.24

m=1250kg