2. THE EQUATION FOR KINETIC ENERGY IS __ . mgh (1)/(2)mv^2+mgh (1)/(2)mv^2

The correct answer is $\frac {1}{2}mv^{2}$.<br /><br />Kinetic energy is the energy an object possesses due to its motion. The equation for kinetic energy is given by $\frac {1}{2}mv^{2}$, where $m$ represents the mass of the object and $v$ represents its velocity.<br /><br />The other options provided are not correct:<br /><br />1. $mgh$ represents potential energy, which is the energy an object possesses due to its position or height above the ground.<br /><br />2. $\frac {1}{2}mv^{2}+mgh$ represents the total mechanical energy of an object, which is the sum of its kinetic energy and potential energy.<br /><br />Therefore, the correct equation for kinetic energy is $\frac {1}{2}mv^{2}$.