Question

A car with a mass of 1500 kg is moving at a rate of 4 m s . Determine its kinetic energy

Answer 1

the correct answer is b) 12000 J

Answer 2

Answer:- The Kinetic energy of the car is 12000 J.

Explanation:

Kinetic energy is the energy posessed by an object by virtue of its motion.

`K.E=(1mv^2)/(2)`

m= mass of object = 1500 kg

v= velocity of object = 4 m/s

Putting in the values in the equation:

`K.E=(1500kg* 4^2ms^(-1))/(2)`

`K.E=12000kgm^2s^(-2)=12000N`
`1kgm^2s^(-2)=1J`

Thus Kinetic energy of the car is 12000 J.