60. Go The drawing shows a circus clown who weighs890 N. The coefficient of static friction between theclown's feet and the ground is 0.53. He pulls verti-cally downward on a rope that passes around threepulleys and is tied around his feet. What is the mini-mum pulling force that the clown must exert to yankhis feet out from under himself?

Answered: 60. Go The drawing shows a circus clown…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 63AP: A person doing a chin-up weighs 700 N, exclusive of the arms. During the first 25.0 cm of the lift,...

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Similar questions

(a) What is the maximum frictional force in the knee joint of a person who supports 66.0 kg of her mass on that knee? (b) During strenuous exercise, it is possible to exert forces to the joints that are easily 10 times greater than the weight being supported. What is the maximum force of friction under such conditions? The frictional forces in joints are relatively small in all circumstances except when the joints deteriorate, such as from injury or arthritis. Increased frictional forces can cause further damage and pam.
A person doing a chin-up weighs 700 N, exclusive of the arms. During the first 25.0 cm of the lift, each arm exerts an upward force of 355 N on the torso. If the upward movement starts from rest, what is the persons velocity at that point?
(a) If half of the weight of a small 1.00103-kgutility truck is supported by its two drive wheels, s hat is the maximum acceleration it can achieve on dry concrete? (b) Will a metal cabinet lying on the wooden bed of the truck slip if it accelerates at this rate? (c) Solve both problems assuming the truck has four-steel drive.
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frictioniess surface by a 33.0 N force that makes a 35 ° angle (0) with the h tal (see figure). What is the magnitude 2. Four blocks, with masses m1 6.00 kg, m2 = 4.40 kg, m3 = 7.30 kg, and m4 of the tension between the m3 and m4 blocks? 8.00 kg, are pulled on a horizontal m3 m2 F m1 ssfoss f60f60 sto0 ssf60 ssf60 ssfó0. sf60 ssf6 098.091
moodle.nct.eduom/mod/qi -Learning Portal Courses - Reports - e-Services- Academic Departments - ETC - CIMS - A 17kg crate resting on a horizontal surface is pushed as shown. If the coefficient of static friction u, between the surfaces is 0.24, what is the minimum force (F) required to start the motion? O a 4.08N O b. 70.83N Oc 39.98N Od. 694.17N Windows buut An object of mass Skg is sliding with a constant velocity of 10m/s on a frcitionless horizontal table. The force needed to keep the object moving with the same velocity is. 144 4- # 4. 6. V.
1. A 500 N BALIKBAYAN BOX WAS UNLOADED BYA DELIVERY TRUCK IN A DRIVEWAY. TO GET IT MOVING TOWARD A GARAGE, YOU HAVE TO PUSH A HORIZONTAL FORCE OF 200 N. ONCE IT STARTED TO MOVE, YOU HAVE TO PUSH WITH A FORCE OF 1O O N ONLY TO KEEP IT MOVING. WHAT ARE THE COEFFICIENT OF STATIC AND KINETIC FRICTION?
8. Belle loves to travel local and abroad. She is already at the airport with her 20.0-kg suitcase at constant speed by pulling on a strap at an angle O above the horizontal. She pulls on the strap with a 35.0-N force, and the friction force on the suitcase is 20.0 N. (a) Draw a free body diagram of the suitcase. (b) What angle does the strap make with the horizontal? (c)What is the magnitude of the normal force that the ground exerts on the suitcase?
Q5. As in Fig. if the mass of its body is 10 kg. Calculate the acceleration of the body if the coefficient of kinetic friction uk= 0.2. 100N 30
4. The 1.0 kg physics book in ngure is connected by a string to a 500 g cof ch un the slope and relcased with a speed of 3 m/s. The cocefficient of fri a) What is the acceleration of the objects? b) Draw a force diagram for an individual item. Find the tension in the rop analyze?) ans 6.73 m s', 1.54 N 20

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