To understand the meaning of the variables that appear in the equations for rotational kinematics with constant angular acceleration. Rotational motion with a constant nonzero acceleration is not uncommon in the world around us. For instance, many machines have spinning parts. When the machine is turned on or off, the spinning parts tend to change the rate of their rotation with virtually constant angular acceleration. Many introductory problems in rotational kinematics involve motion of a particle with constant nonzero angular acceleration. The kinematic equations for such motion can be written as θ=θ0+ω0t+12αt2θ=θ0+ω0t+12αt2 and ω=ω0+αtω=ω0+αt. Here, the meaning of the symbols is as follows: θ is the angular position of the particle at time ttt. θ0 is the initial angular position of the particle. ω is the angular velocity of the particle at time ttt. ω0 is the initial angular velocity of the particle. α is the angular acceleration of the particle. Part A True or false: The quantity represented by θ is a function of time (i.e., is not constant). true false Part B True or false: The quantity represented by θ0 is a function of time (i.e., is not constant). true false Part C True or false: The quantity represented by ω0 is a function of time (i.e., is not constant). true false Part D True or false: The quantity represented by ω is a function of time (i.e., is not constant). true false Part E Which of the following equations is not an explicit function of time t, that is, does not involve t as a variable, and is therefore useful when you do not know or do not need the time? θ=θ0+ω0t+1/2αt2 ω=ω0 +αt ω2 =ω2 0+2α(θ−θ0) Part F In the equation ω=ω0+αt, what does the time variable t represent? Choose the answer that is always true. Several of the statements may be true in a particular problem, but only one is always true. the moment in time at which the angular velocity equals ω0 the moment in time at which the angular velocity equals ω the time elapsed from when the angular velocity equals ω0 until the angular velocity equals ω