Kinetic Energy Calculator

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**Step 1 :**

**Step 2 :**

Online Kinetic Energy Calculator is a tool which makes calculations easy and fun. It is used to calculate the kinetic energy when the mass and the velocity are given. Try our Kinetic Energy Calculator for free and get your problems solved instantly.

Kinetic energy is defined as the energy possessed by an object by virtue of its motion.

Formula:

K.E = 1/2 * mv^{2}. Joules

State the equation you plan to use and plug in the values.

Given that the displacement of body in meters is a function of time as follows : x = 3t

^{2}+ 6.The mass of the body is 4 kg.What is the increase in its kinetic energy two second after start of the motion ?**Step 1 :**Velocity v=dx/dt=d/dx (2t

^{2}+ 6) =4t.

After two second the velocity is 4(2) = 8 m/s.

**Step 2 :**Formula:

K.E = 1/2 * mv

^{2}. Joules

Where m = 4 kg and v = 8 m/s.

K.E = 1/2 * 4 *8

^{2}.**Answer :**K.E = 128 Joules.

The displacement of body,whose velocity is 3 m/s .The mass of the body is 4 kg.What is the kinetic energy of the motion ?

**Step 1 :**Formula:

K.E = 1/2 * mv

^{2}. Joules

Where m = 4 kg and v = 3 m/s.

**Step 2 :**Plug in the values in the above equation.

K.E = 1/2 * 4 *3

^{2}.**Answer :**K.E = 32 Joules.

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