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3 years ago

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?

Physics

2 answers:

wariber [46]3 years ago

7 0

Answer:1250kg

Explanation:

Kinetic energy(ke)=688900j

Velocity(v)=33.2m/s

Mass(m)=?

ke=(mv^2)/2

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

688900x2=mx1102.24

1377800=mx1102.24

m=1377800/1102.24

m=1250kg

aivan3 [116]3 years ago

5 0

Answer:

1250kg

Explanation:

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

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

625 x 2 = 1250

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