Question

By what factor does the Kinetic Energy of

a car change when its speed is trippled?​

Answer 1

Image result for By what factor does the Kinetic Energy of   a car change when its speed is trippled?​slideplayer.com

Where k is kinetic energy, m is the mass and v is the velocity. If me assume that the mass of the car does not change as its speed changes, the only thing that changes is the velocity. When the velocity triples, the kinetic energy goes up by a factor of 9 because the velocity gets squared while mass remains constant.

pls mark as the brainliest

Answer 2

it increases by a factor of 9.  Here's why:

The formula for kinetic energy is

k = .5 mv^2 or k = .5*m*v*v

Where k is kinetic energy, m is the mass and v is the velocity.

If me assume that the mass of the car does not change as its speed changes, the only thing that changes is the velocity.

When the velocity triples, the kinetic energy goes up by a factor of 9 because the velocity gets squared while mass remains constant.