The formula represents the kinetic energy k of an object with mass m and velocity v. k=12mv2 solve for v. v=±12km2 v=±2k√m v=±2km‾‾‾‾‾√ v=±2km√m

Option 3rd is correct

Step-by-step explanation:

Given that:

The formula represents the kinetic energy K of an object with mass m and velocity v is given by:

         ....[1]

Solve for v:

Multiply both sides by 2  in [1] we have;

Divide both sides by m we get;

or

⇒

Therefore, the value of v is,