Answer:
43,200 Joules
Explanation:
Kinetic energy can be found using the following formula:
[tex]KE=\frac{1}{2}mv^2[/tex]
where m is the mass in kilograms and v is the velocity in m/s.
We know the mass is 600 kilograms, and the car is moving at 12 meters per second. Therefore the mass is 600 kilograms and the velocity is 12 m/s.
m=600
v=12
Substitute these values into the formula.
[tex]KE=\frac{1}{2}600*12^2[/tex]
First, evaluate the exponent: 12^2. 12^2 is the same as 12*12, which is equal to 144.
[tex]KE=\frac{1}{2}*600*144[/tex]
Multiply 600 and 144
[tex]KE=\frac{1}{2}*86,400[/tex]
Multiply 1/2 and 86,400, or divide 86,400 by 2.
[tex]KE=43,200[/tex]
Add appropriate units. Kinetic energy uses Joules, or J for units.
[tex]KE=43,200 Joules[/tex]
The kinetic energy of the car is 43,200 Joules.
