Question

What is the kinetic energy of a blcycle with a mass of 14 kg travellng at a
velocity of 3 m/s?

Answer 1

`K=63J`

Step-by-step explanation:

Hello,

In this case, the kinetic energy is defined as:

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

Thus, since the mass is 14 kg and the velocity is 3 m/s we compute the resulting kinetic energy as shown below:

`K=(1)/(2) *14kg*(3m/s)^2=63kg*m^2/s^2`

Nonetheless, based on the definition of Joules (N*m) as the major unit of energy, we shall understand that kg*m²/s² also equals Joules, for that reason the result is:

`K=63J`

Best regards.