Question

1. Determine the kinetic energy of a 625-kg roller coaster car that is moving with a speed of 18.3 m/s,​

Answer 1

104653.13J

Step-by-step explanation:

Given parameters:

Mass of roller coaster = 625kg

Speed = 18.3m/s

Unknown:

Kinetic energy = ?

Solution:

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

Kinetic energy =
`(1)/(2)` x m x v²

m is the mass

v is the speed

Kinetic energy =
`(1)/(2)` x 625 x 18.3² = 104653.13J