Question

What is the kinetic energy of a 1,854.50 kg car that travels at 8.61 m/s?

Answer 1

`\huge{\boxed{68,738.99 \: J}}`

Step-by-step explanation:

The kinetic energy of the car can be found by using the formula

`\bold{k = (1)/(2) * m * {v}^(2) \\ }`

m is the mass in kg

v is the velocity in m/s

From the question

m = 1854.5 kg

v = 8.61 m/s

`k = (1)/(2) * 1854.5 * {8.61}^(2) \\ k = 927.25 * 74.1321 \\ \\ k = 68738.989`

We have the final answer as

68,738.99 J