Question

What is the kinetic energy of a 10-kg bicycle moving at 10 m/s?

Answer 1

The kinetic energy of the bicycle is 500 Joule.

Step-by-step explanation:

Given mass=10 kg velocity=10m/s

Kinetic energy of an object is directly proportional to the mass of the object and to the square of its velocity.The unit of kinetic energy is Joule.

1 Joule is equal 1 kg m^2/s^2.

The expression for calculating kinetic energy is given below;

`Kinetic\ energy=(1)/(2)* mass* velocity^(2)`

`Kinetic\ energy\ of\ bicycle=(1)/(2)* 10*10^2=5*100=500\ kg\ m^2/s^2`

∴ Kinetic energy =500 kg m^2/s^2=500 Joule

Hence the kinetic energy of the bicycle is 500 Joule.