- Enter the values of the two known variables in the text boxes

- Leave the text box empty for the variable you want to solve for

- Click on the calculate button.

$K=\frac {1}{2} mv^2$

$K = \frac {1}{2} mv^2$

Where

K-> Kinetic Energy

m -> Mass of the object

v-> Velocity of the object

Calculate the Kinetic energy of the object have mass 10 kg and velocity 3m/s

m=10 kg, v= 3m/s , K=?

Kinetic Energy is given by the formula

$K = \frac {1}{2} mv^2$

$K= \frac {1}{2} \times 10 \times 3^2 = 45 \ J$

An Kinetic energy is 10 J.If the object mass is 1 kg ,calculate the velocity of the object?

m=1 kg, v= ? , K=10J

Kinetic Energy is given by the formula

$K = \frac {1}{2} mv^2$

Rearranging

$v= \sqrt { \frac {2K}{m}} = \sqrt {\frac {2 \times 10}{1}} = \sqrt {20} = 2 \sqrt 5 \ m/s$

An Kinetic energy is 36 J.If the velocity is 3 m/s ,calculate the mass of the object?

m=?, v= 3 m/s , K=36J

Kinetic Energy is given by the formula

$K = \frac {1}{2} mv^2$

Rearranging

$m = \frac {2K}{v^2} = \frac {2 \times 36}{3^2} = 8 \ kg$

$K=\frac {1}{2} mv^2$

2. If mass and KE are given

$v= \sqrt { \frac {2K}{m}}$

3. If velocity and KE are given

$m = \frac {2K}{v^2}$

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