# If an object with a mass of #2 kg # changes speed from #19m/s# to #20 m/s#, by how much does its kinetic energy change?

##### 1 Answer

Jan 16, 2016

#### Answer:

#### Explanation:

Kinetic Energy of an object is given by

In the given question, if

Change in kinetic energy

Substituting given values

*Even though velocity is a vector quantity, Kinetic energy is a scaler quantity because