Identify what's going to rotate 2. where is it going to rotate (place an X on it) 3. Identify the forces
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1. Identify what's going to rotate
2. where is it going to rotate (place an X on it)
3. Identify the forces
4. Draw an Extended Free Body Diagram
5. Write a Net Torque Equation
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- A force F is applied perpendicular to a rod at a distance l away from the axis of rotation. Which of the following is TRUE about the torque on the rod? Explain why.A. Torque is parallel to force FB. The longer the lever arm, the smaller the torque. C. When the magnitude of F is doubled, the torque is halved. D. Torque is perpendicular to the lever arm6. A yoyo is dropped as shown in the figure below. Neglect air friction. The mass of the yoyo is 0.160 kg, R = 10 cm and Ro = 2.0 cm. a. Show and label the translational forces acting on the yo-yo's center of gravity. Show and label the force(s) exerting non- zero torque(s) about the yo-yo's center of gravity at their point of application. Only show non-zero torques. b. If the linear acceleration of the yo-yo is 2.0 m/s/s, determine the tension of the string.How to solve number 1
- If an object is in equilibriuim, the net torque about any arbitrary axis must be zero. A. True B. Falsea. What is the maximum torque applied by the cable? (Give your answer in N m.) b. What is the torque due to the weight of the bridge? (Give your answer in N m.) c. How far can Lancelot ride out along the bridge before the cable breaks? (Give your answer in m.) Note: At his maximum distance, the torque from the cable will equal the torque from both the weight of the bridge and the weight of Lancelot.1. A bar fixed at point C experiences three forces . The forces F1 , F2 and F3 have respective magnitudes of 23 N , 23 N and 18N . What is the net torque in Nm (including sign ). 2. The wheels , axle, and handles of a wheel-barrow weigh 117 N (W). What is the force F needed to hold the wheel-barrow in equilibrium if its loaded with 220N of dirt.