Question

Calculate the kinetic energy of: a car of mass 1200 kg that travels 60m in 3sec.​

Answer 1

240,000 J or 240 kJ

Step-by-step explanation:

We can use the equation for kinetic energy:

KE =
`(1)/(2)mv^(2)`

where m = mass and v = velocity

Next, substitute the known values into the equation:

• mass = 1200 kg
• velocity = 60m in 3 seconds → 60/3 = 20 m/s

KE = 1/2 × 1200 × 20² = 240,000 J

Answer: 240,000 J or 240 kJ

Hope this helps!