Question 1 MECHANICAL ADVANTAGE You examine the rear wheel on your bicycle. It has a radius of 35.6 cm and has a gear with a radius of 4.00 cm. When the chain is pulled with a force of 155 N, the wheel rim moves 14.0 cm. The efficiency of this part of the bicycle is 95.0 percent. a. What is the IMA of the wheel and gear? b. What is the MA of the wheel and gear? c. What is the resistance force? d. How far was the chain pulled to move the rim 14.0 cm? Use the above example to solve the problem below: 25. If the gear radius of the bicycle in Example Problem 4 is doubled while the force exerted on the chain and the distance the wheel rim moves remain the same, what quantities change, and by how much? Enter IMA here (3 sig figs) Enter MA here (3 sig figs) Enter Resistance Force (Newtons) (3 sig figs) Enter how far the chain was pulled (cm) (3 sig figs)Question 2 3 pts 27. A worker uses a pulley to raise a 24.0-kg carton 16.5 m, as shown in Figure 15. A force of 129 N is exerted, and the rope is pulled 33.0 m. a. What is the MA of the pulley? b. What is the efficiency of the pulley? 33.0 m 24.0 kg 16.5 m 129 N Figure 15 Enter MA (3 sig figs) Enter Efficiency in % (3 sig figs)