Suppose an automobile has a kinetic energy of 2800J.?

Question

When it moves it with twice the speed, what will be the kinetic energy?

Answer 1

Kinetic energy is proportional to the square of velocity. That means that if velocity doubles, kinetic energy goes up by a factor of 4.

kinetic energy = 0.5*m*v^2

So if you replace v by (2v), that 2 will get squared and you'll be multiplying your original kinetic energy by 4.

Answer 2

It will be a factorial of the energy used in its prone state.

As the guy above states in terms of equation