HELP!! Why is motion not considered a force?
2 answers:
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Answer:
43,200 Joules
Explanation:
Kinetic energy can be found using the following formula:
where <em>m</em> is the mass in kilograms and <em>v</em> 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.
<em>m</em>=600
<em>v</em>=12
Substitute these values into the formula.
First, evaluate the exponent: 12^2. 12^2 is the same as 12*12, which is equal to 144.
Multiply 600 and 144
Multiply 1/2 and 86,400, or divide 86,400 by 2.
Add appropriate units. Kinetic energy uses Joules, or J for units.
The kinetic energy of the car is 43,200 Joules.