F Pivot d The length of the pool cue is 1.5 m. A force of 11 N is applied at an angle 55°, a distance 0.7 meters from the pivot. What is the torque created?
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- The wheel has radius ?? = 60 cmand is free to rotate without friction about acentral axle. A force ?? = 15N is applied tothe wheel as shown, at distance ?? = 20 cm.from the axle. ?? = 50°a 15kg child is sitting on a playground teeter-totter, 1.5 m from the pivot. what is the minimim distance, on the orher side of the pivot, such that a 220N force will make the child lift off the ground?A worker applies a torque to a nut with a wrench 0.500 mlong. Because of the cramped space, she must exert a forceupward at an angle of 60.0° with respect to a line from thenut through the end of the wrench. If the force she exerts hasmagnitude 80.0 N, what magnitude torque does she apply tothe nut?
- The block on a sooth inclined plane is movng down with a constant aconleration of 4 ms The block on the inclined plane is 41 kg and the hanging mass is 24 kg The radius of the pulley is 0 49 m. The angle thota is 31 degress Detemine the moment of inerta of the puley ROUND OFF FINAL ASWER UP TO 2 DECIMAL PLACES. INPUT THE NUMBER ONLY.In the figure below, the CG of the pole held by the pole vaulter is 2.04 m from the left hand, and the hands are 0.713 m apart. (Assume the vaulting pole has a mass of 2.52 kg.) Calculate the force (in N) exerted by his right hand. (Enter the magnitude.)A horizontal 810-N merry-go-round of radius 1.20 m is started from rest by a constant horizontal force of 55 N applied tangentially to the merry-go-round. Find the kinetic energy of the merry-go-round after 4.0 s. (Assume it is a solid cylinder. Also assume the force is applied at the outside edge.) 263.99 Your response differs from the correct answer by more than 10%. Double check your calculations. J Need Help? Read It
- (a) Calculate the force (in N) the woman in the figure below exerts to do a push-up at constant speed, taking all data to be known to three digits. (You may need to use torque methods from a later chapter.) m = 62 kg CG w Freaction 0.87 m 1.45 m N (b) How much work (in J) does she do if her center of mass rises 0.180 m? (c) What is her useful power output (in Ww) if she does 27 push-ups in 1 min? (Should work done lowering her body be included? See the discussion of useful work in Work, Energy, and Power in Humans.)When a wrench is rotated the magnitude of the torque is 26N.m A 95-Force is applied 35 Cm from the fulcrum. At what angle to the wrench is the force applied?10kg rigid beam that is 3mlong is supported at each end. An8kg block is placed 2m fromsupport 1. How much upward forcedoes each support provide to ensurezero acceleration and zero torque?Note, if an object is not rotating, itis not rotating about every axis.
- Determine the result ant R of the two forces applied to the bracket. Write R in terms of unit vectors along the r and y axes shown: gular plate Det 150 N the momente od anoo y' L--x 30% 200 N ba oni hag aluovio gi 35 q sq od edi onim ida ad doidw baroqraq ban lellen ibaag fs lollang 20o A and about point O.A bolt has required of being tightened to 38 Nm. You pull on the end of a 25cm wrench at an angle if 120 degrees to the radial arm line. What is force of the pull needed?For a home repair job you must turn the handle of a screwdriver27 times. (a) If you apply an average force of 13 N tangentially tothe 3.0-cm-diameter handle, how much work have you done?(b) If you complete the job in 24 seconds, what was your averagepower output?