How do you find the kinetic energy of a moving car?

Warning: Do not ride a car at high speed. Why? Lets see some physics.

Moving an object contani Kinetic energy.

Kinetic energy is the energy of motion. Every moving object and particle have kinetic energy. If you walk, then it also possesses some kinetic energy.

The kinetic energy (KE) of an object in motion is given by the formula:

 K.E. = 1/2 mv2.

where:

• KE is the kinetic energy,

• m is the mass of the object,

• v is the velocity of the object.
  
  

Here mass m is directly proportional to kinetic energy. It means smaller mass contains smaller kinetic energy.

Meaning riding a bicycle creates less kinetic energy than riding a car.

How do you find the kinetic energy of a moving car?

 K.E. = 1/2 mv2.

Let's apply this formula to find the kinetic energy of a moving car. Suppose you have a car with a mass of 1500 kg (mass can be obtained from the car's specifications) and it is moving at a velocity of 100 km/hour 

 K.E. = 1/2 mv2.

m= 1500 kg 

Velocity = 100km/hour

K.E=1/2 1500 (100km/h)2

K.E=750,000,000 Joules

So, the kinetic energy of the moving car in this example is 750,000,000 Joules.

 K.E. = 1/2 mv2.

This formula show that kinetic energy is directly proportinal to mass of object and velcocity.

So when you ride a car, you cannot decrease its mass. But you can decrease the speed of a car. That's why less speed implies less kinetic energy. It will make you feel safe and pedestrian.

Drive your car at a lower speed so that when you apply the brake, it immediately stops the car.