Question

A cyclist and bike have a total mass of 105kg and a speed of 12m/s. Calculate the kinetic energy.

Answer 1

Answer:

7560J

Explanation:

Given parameters:

Mass of cyclist and bike  = 105kg

Speed  = 12m/s

Unknown:

Kinetic energy  = ?

Solution:

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

 It is mathematically expressed as;

        K.E  = $\frac{1}{2}$ m v²

Insert the parameters:

      K.E  =  $\frac{1}{2}$ x 105 x 12²  = 7560J