Question

A car is traveling at 30 m/s with a Kinetic Energy of 900 kJ what is its mass

Answer 1

do you know the formula for kinetic energy?

Answer 2

No and I'm on a time limit, please help.

Answer 3

The formula is ... kinetic energy= (mass/2)*speed^2

Answer 4

\(kinetic~energy=\frac{ mass }{ 2 }*speed^2\)

Answer 5

Now plug in the numbers you know, which are the SPEED and the KINETIC ENERGY

Answer 6

After you do this, solve it as an equation

Answer 7

I don't get it

Answer 8

Oh wait I have to solve for m?

Answer 9

Omg help I'm running out of time

Answer 10

Please

Answer 11

And yes, you have to solve for M

Answer 12

?

Answer 13

Solve for M, you know the speed and kinetic energy,

Answer 14

Solve this... \[900=\frac{ m }{ 2 }*900\]

Answer 15

M=2

Answer 16

So the mass of the car is 2 kg?