Question

A 1,000 kg car is driving on a 15 m high bridge at 5 m/s. What is the kinetic energy of the car?

0 J

12,500 J

25,000 J

147,000 J

Answer 1

`KE=12,500J`

Step-by-step explanation:

The formula for kinetic energy is:

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

We can plug in the given values into the equation:

`KE = (1)/(2)*1000kg*(5m/s)^2`

`KE = 500kg*25m^2/s^2`

`KE=12,500J`