19:08 X L3 Dynamics Assignment... [v] Fiora grap or uvamage against road. (c) Plot a graph of efficiency against load and state whether the machine is likely to overhaul. (d) Evaluate the theoretical limiting values of mechanical advantage| and efficiency and explain whether your graphs tend towards these values. (e) Calculate the work input and the work done against friction when raising the 10 kN load through a height of 50 mm. Problem 3 wheel D3 Dz axel Snatch block D Load W Effort = E W E Mass lifted Figure 3 A differential wheel and axle as shown in Figure 3 has a wheel diameter of 300 mm and axle diameters of 100 and 75 mm. The law of the machine is E = 0.03W + 3.0. Determine i. the velocity ratio of the device, ii. mechanical advantage and efficiency when raising a load of 18 kg, iii. the work input which is required to raise the load through a height of 1.2 m. Task 2 Problem 4 A simple pendulum describes 55 complete oscillations of amplitude 27 mm in a time of 75 seconds. Assuming that the pendulum is swinging freely, calculate i. the length of the supporting cord and ii. the maximum velocity and acceleration of the bob. Problem 5 i. Carry out the experiments 1 and 2 following the instructions given at the end of this assignment. ii. Then answer the questions and plot graphs as listed under each experiment.