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

Answer:

104653.13J

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  = $\frac{1}{2}$ x m x v²  

m is the mass

v is the speed

    Kinetic energy  =  $\frac{1}{2}$  x 625  x  18.3²   = 104653.13J