Verified Answer :

Formula of Kinetic energy:

ke = 1/2 mass velocity²

mass = 600 kg
velocity = 12m/s

ke = 1/2 600 (12)²
ke = 1/2 600 144
ke = 1/2 * 86,400
ke = 43,200

The kinetic energy of the moving car is 43,200 joules.

Answer:

The kinetic energy of the car is, 43,200 kgm/s

Step-by-step explanation:

Using the formula:

\(K.E = \frac{1}{2}mv^2\)           ....[1]

where,

K.E is the Kinetic Energy

m is the mass

and v is the velocity.

As per the statement:

a car is moving at 12 m/s and has a mass of 600 kg.

⇒m = 600kg and v = 12m/s

Substitute these given values in [1] we have;

\(K.E = \frac{1}{2} \cdot 600 \cdot 12^2\)

⇒\(K.E = \frac{1}{2} \cdot 600 \cdot 144\)

⇒\(K.E = \frac{1}{2} \cdot 86400\)

Simplify:

⇒\(K.E = 43,200\) kgm/s

Therefore, the kinetic energy of the car is, 43,200 kgm/s