# How is the kinetic energy of a moving cart affected if the velocity is tripled?

## How is the kinetic energy of a moving cart affected if the velocity is tripled?

Kinetic energy goes up by nine times ! This is bacause KE = 1/2mv^2, which means KE is directly proportional to the second power of the velocity. So if velocity goes to two fold increase, KE goes up four times, and if velocity is tripled, KE will go up by nine times… Kaiser T, MD.

How is the kinetic energy of a moving cart affected if its velocity is halved?

READ:   What does it mean when a girl kisses you first?

If the velocity of a body is halved, its kinetic energy becomes one fourth as kinetic energy is directly proportional to velocity squared.

### How is the kinetic energy of a moving cart affected if its velocity is doubled?

(i) As kinetic energy of an object is directly proportional to its mass, so if mass is doubled (i.e. it becomes 2 m), then kinetic energy will also get doubled.

How is the kinetic energy of a moving vehicle affected if its velocity is reduced to 1/4th of its initial velocity?

Kinetic energy is directly proportional to velocity squared (K.E. = 12mv2). So, if velocity is halved, then kinetic energy becomes one fourth.

#### How is the kinetic energy of a moving cart affected if its velocity is reduced to 1 3 rd of its initial velocity and mass remains unchanged?

ALternative :If velocity v is reduced to 13rd (keeping the mass same),the kinetic energy reduces to 19th initial value (since kinetic energy is directly proportional to the square of velocity).

READ:   Why does my penis smell at 14?

How is the kinetic energy of moving body affected if its tripled?

Answer: as we know K.E=1/2mv^2 from this eqn we get K.E is directly proportional to square of velocity of body so, if we triple the velocity of body the K.E will become nine times of the initial K.E.I hope you got it. Answer: The Kinetic Energy is increased by a factor of 9 if the velocity is tripled.

## What is the effect on the kinetic energy of a moving car if 2 a its mass is doubled b its velocity is halved?

SO, KINETIC ENERGY BECOMES ONE EIGHTH.

What happens to the kinetic energy of the cart as it ascends a hill?

KE + PE = constant. A simple example involves a stationary car at the top of a hill. As the car coasts down the hill, it moves faster and so it’s kinetic energy increases and it’s potential energy decreases. On the way back up the hill, the car converts kinetic energy to potential energy.

### Which would have a greater effect on kinetic energy?

Kinetic energy of a body is directly proportional to the mass and square of velocity of the moving body. So, doubling the velocity will have a greater effect on the kinetic energy of a body.