Cutnell, Physics, 11e Assignment Gradebook ORION Downloadable eTextbook PRINCIPLES OF PHYSICS I & II (PHYS 211, 212) hapter 04, Problem 060 GO FULL SCREEN PRINTER VERSION 1 BACK NEXT Your answer is partially correct. Try again. The drawing shows a circus clown who weighs 850 N. The coefficient of static friction between the clown's feet and the ground is 0.430. He pulls vertically downward on a rope that passes around hree pulleys and is tied around his feet. What is the minimum pulling force that the clown must exert to yank his feet out from under himself? 121.83 the tolerance is +/-2% Open Show Work Click if you would like to Show Work for this question: GO TUTORIAL SHOW HINT Version 4.24.18.1 LINK TO TEXT LINK TO TEXT I © 2000-2020 John Wiley_& Sons, Inc. All Rights Reserved. A Division of John Wiley & Sons, Inc. Policy 4 étv PAGES FEB 17 MacBook Pro F12 E11

In the figure, a man is trying to get his car out of mud on the shoulder of a road. He ties one end of a rope tightly around the front bumper and the other end tightly around a utility pole 29 m away. He then pushes sideways on the rope at its midpoint with a force of 550 N, displacing the center of the rope 0.28 m from its previous position, and the car barely moves. What is the magnitude of the force on the car from the rope? (The rope stretches somewhat.)

A 0.50-mm-radius fishing line made of nylon is 100 m long when no forces are applied. A fish is hooked and pulls with a tension force Of 250 N. What is the elongation?

Consider the woman doing push-ups in the figure. She has a mass of 49.2 kg, and the distance from her feet to her center of mass is 0.96 m, while the distance from her feet to her hands is 1.75m. a. What force in newtons should the woman in the figure exert on the floor with each hand to do a push-up? Assume that she moves up at a constant speed.  b.  The triceps muscle at the back of her upper arm has an effective lever arm of 1.95 cm, and she exerts force on the floor at a horizontal distance of 15.5 cm from the elbow joint. Calculate the magnitude of the force in newtons for each triceps muscle.  c. How much work in joules does she do if her center of mass rises 0.27 m?  d.  What is her useful power output, in watts, if she does 25 pushups in one minute? For the sake of simplicity, ignore any power used by her muscles lowering her body during each pushup.