This week in lab you observed how a force can apply a torque and rotate an object. Using the concepts of applied force and torque, describe how a doorstop works to keep a door open. Where along the length of the door is the doorstop most effective? (That is, closer or farther from the hinges?) Explain your reasoning using the concepts of force and torque.

Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. The sprocket wheel and chain shown are initially at rest. The wheel has a uniform angular acceleration of 90 rad/s2 counterclockwise. A 4 in. В Determine the acceleration of point A of the chain. (You must provide an answer before moving on to the next part.) The acceleration of point A of the chain is | f/s² +.

Problem 1. Answer each of following five multiple choice or short answer questions. Each questions will be scored out of 4 points. Be sure to show your work and explain your thought process; partial credit will be awarded for correct work even if your final answer is wrong. Part (a) Give an example in which a small force exerts a large torque. Give another example in which a large force exerts a small torque. Part (b) A solid sphere of mass M and radius R is rolling without slipping up a ramp. Which of the following statements are true? There may be more than one correct answer; circle all true statements. (a) The sphere's angular velocity vector points in the same direction as its angular acceleration vector. (b) There exists a force of static friction that points in the same direction as the sphere's linear velocity vector. (c) The sphere's net force points up the ramp. (d) The free body diagram for the sphere is the same as that for a sphere rolling without slipping down a ramp.…

Number 1

FA b b Pivot F, In the figure above, 4 forces of equal magnitude act on a uniform thin metal plate. The plate has a hinge (pivot) set up at one corner as shown. Rank the four forces in order, from the least amount of torque to the greatest amount of torque generated about the pivot point. Note: Dashed lines are merely drawing aids. F3, F2, F1, F4 F3, F1, F2, F4 F4, F3, F2, F1 F2, F1, F3, F4 F4, F3, F1, F2

The most famous version of this puzzle is known as “Archimedes’ Law of the Lever.” Look this up and describe the relationship between this and torque. 3? Pick any application of a lever in everyday life (besides a seesaw) and explain how the torques must be balanced in order for the application to be fulfilled?

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 arm

Please help with a, b and c

Please explain how you solved 1 to 3

Please answer question 9 parts g and h. The previous parts are answered and everything needed to answer parts g and h are there. The question is not incomplete.