Part of the equation for calculating the kinetic energy of an object is shown below. E_(k)=(1)/(2)m a) What letter goes in the gap? Interanswer b) What measurement does this letter represent? square

## Step1: From the basic knowledge of physics, we know that kinetic energy (represented as ) is calculated by the formula , where stands for the mass of the object and stands for the velocity (or speed) of the object. ## Step2: From the given incomplete formula for kinetic energy , we can see there is a missing element. Given that we already know stands for mass, the missing element, according to the complete kinetic energy formula, must be 'v' to the power of 2 (i.e., ).## Step3: The letter , as used in the formula for kinetic energy refers to the measurement of velocity, or the speed an object is moving in a specific direction.