19 LABORATORY 19 The Pendulum-Approximate Simple Harmonic Motion PRE-LABORATORY ASSIGNMENT 1. What is the requirement for a force to produce simple harmonic motion? 2. A particle of mass M-1.35 kg is subject to a force F=-0.850 x, where x is the displacement of the particle from equilibrium. The units of force F are Newtons, and the units of x are meters. What is the period T of its motion? Show your work. 3. A simple pendulum of length L=0.800 m has a mass M=0.250 kg. What is the tension in the string when it is at an angle 0=12.5? Show your work. 4. In Question 3, what is the component of the weight of M that is directed along the arc of the motic of M? Show your work. 202 Pys Laboratory Mamal Loyd 5. What is the period 7 of the motion of the pendulum in Question 37 Assume that the period is independent of 8. Show your work. 6. What would be the period T of the pendulum in Question 3 if L was unchanged but M-0.500 kg? Assume that the period is independent of 6. Show your work. 7. Determine the period T of the pendulum in Question 3 if everything else stays the same, but 0=45.0°, Do not assume that the period is independent of 0. Show your work.