Question

a remote control toy jet fighter has a mass of 5 kg and can travel up to 60 m/s. what is the kinetic energy of the toy jet fighter at this speed?

Answer 1

9000J

Step-by-step explanation:

Given parameters:

Mass of the jet fighter = 5kg

Velocity = 60m/s

Unknown:

Kinetic energy of the jet fighter = ?

Solution:

The kinetic energy of a body is the energy due to motion of the body.

It is mathematically expressed as;

K.E =
`(1)/(2)` m v²

m is the mass

v is the velocity

So;

K.E =
`(1)/(2)` x 5 x 60² = 9000J