2. Calculate the magnitude of the effort required to balance the lever system below. (4 marks) 4. Consider the pulley system below. a. Determine the effort needed to raise the hanging mass in the following pulley system. Explain 1.2 m your reasoning. (5 marks) b. How far must the rope be pulled to raise the mass a distance of 10 cm? (2 marks) 61 cm ? 65 N 3. Calculate the mass of the block required to balance the lever system below. (7 marks) 1.8 m 0.58 m 450 N 100 kg h = 10 cm |