Question

By what factor will the energy of a moving object go up if it's speed increases by a factor of 5​

Answer 1

Kinetic energy is given by the equation

KE=mv2  

where m is mass in kilograms, and v is velocity in m/s. Using this equation, we can see how changes in velocity or mass can affect the kinetic energy of an object. Kinetic energy and mass have a direct proportionality, for example, doubling the mass will double the kinetic energy. However, we will notice that the velocity term is squared, this means that tripling the velocity (the speed), will actually increase the kinetic energy by 3 squared, or 9. This is why it takes 4 times as long to come to a complete stop in a car if you are going twice as fast.

Answer 2

Answer:

kinetic energy

Explanation:

Kinetic energy and mass have a direct proportionality, for example, doubling the mass will double the kinetic energy. However, we will notice that the velocity term is squared, this means that tripling the velocity (the speed), will actually increase the kinetic energy by 3 squared, or 9.