Problem 9.19 Part A A car is traveling at a constant speed on the highway. Its tires have a diameter of 68.0 cm and are rolling without sliding or slipping. If the angular speed of the tires is 45.0 rad/s, what is the speed of the car? Express your answer with the appropriate units. ? V = Value Units Submit Request AnswerV Part A A size-5 soccer ball of diameter 22.6 cm and mass 426 g rolls up a hill without slipping, reaching a maximum height of 4.00 m above the base of the hill. We can model this ball as a thin-walled hollow sphere. At what rate was it rotating at the base of the hill? Express your answer in radians per second. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of A primitive yo-yo. AEQ ? W= rad/s Submit Request Answer Part B How much rotational kinetic energy did it then have? Express your answer in joules VO AED 28 ? Krot = J Submit Request AnswerProblem 10.15 - Enhanced - with Solution V PartA A hollow spherical shell with mass 1.85 kg rolls without slipping down a 39.5 | . S ope Find the acceleration of the shell. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of A rolling bowling ball. Express your answer in meters per second squared. \"4500-? m R_equest Answer V PartB Find the friction force on it. Express your answer in newtons. m Muest Answer V Part C Is the friction kinetic or static friction? O kinetic static Submit Request Answer Part D If the mass were doubled to 3.70 kg , find the acceleration of the shell. Express your answer in meters per second squared. VO AEQ ? a= m/s2 Submit Request Answer V Part E If the mass were doubled to 3.70 kg , find the friction force on it. Express your answer in newtons. AEQ ? F = N Submit Request AnswerProblem 10.38 V Part A To strengthen his arm and chest muscles, an 87-kg athlete 2.0 m tall is doing a series of push-ups as shown in the figure below (gure 1). His center of mass is 1.15 m from the bottom of his feet, and the centers of his palms are 30.0 cm from Find the force that the floor exerts on each of his feet, assuming that both feet exert the same force. the top of his head. Express your answer in newtons. F: Submit R_equest Answer V PartB Find the force that the floor exerts on each of his hands, assuming both palms exert the same force. Express your answer in newtons. F= R_equest Answer Problem 10.59 V Part A The device shown in the figure below (gure 1t is one version of a Russell traction apparatus. It has two functions: to support the injured leg horizontally and _ _ . at the same time provide a horizontal traction force on it. This can be done by What welght W '5 needed to support the leg horlzontally? adjusting the weight W and the angle 0. For this patient, his leg (including his Express your answer in newtons. foot) is 76.0 cm long (measured from the hip joint) and has a mass of 15.4 kg. Its center of mass is 37.0 cm from the hip joint. A support strap is attached to the patient's ankle 13.0 cm from the bottom of his foot. W: N V PartB If the therapist specifies that the traction force must be 11.0 N horizontally, what must be the angle 0? Express your answer in degrees. 9: W Muest Answer V Part0 What is the greatest traction force that this apparatus could supply to this patient's leg? Express your answer in newtons. m Quest Answer Figure 1 of 1 Part D Figure