Question

A car is moving at 12 m/s and has a mass of 600 kg. What is the kinetic energy of the car? (Formula: KE = 1/2mv²)

a) 43,200 J

b) 86,400 J

c) 144,000 J

d) 288,000 J

Answer 1

Using the formula for kinetic energy KE = 1/2mv², the kinetic energy of a 600 kg car moving at 12 m/s is calculated to be 43,200 J, making the correct answer a) 43,200 J.

Step-by-step explanation:

The subject of the question is Physics, and it pertains to the concept of calculating kinetic energy. To find the kinetic energy of a car moving at 12 m/s with a mass of 600 kg, we use the formula KE = 1/2mv², where KE is kinetic energy, m is mass, and v is velocity.

Plugging the values into the formula:

KE = ½ × 600 kg × (12 m/s)²

KE = 300 kg × 144

KE = 43,200 J

Therefore, the correct answer is a) 43,200 J.