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?​

Answer 1

1250kg

Step-by-step explanation:

`(688900)/(33.2\\^(2) )` = 625

`(1)/(2) m = 625`

625 x 2 = 1250

Answer 2

Answer:1250kg

Step-by-step 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