DYNAMICS1. A 5.0 kg block is placed on an incline. The mass is connected to a massless spring bymeans of a light string passed over a frictionless pulley, as shown in Figure 6. The springhas a force constant of 66 N.m. The block is released from rest, and the spring is initiallyunstretched. The block moves down the incline a distance of 28 cm before coming toa rest. What is the coefficient of kinetic friction between the block and the surface ofthe 40-degree incline? (µk = 0.35)2. The banked turns at Talladega International Super Speedway are designed so a 1760kg race car can drive around them at 340 km/h without slowing down. The radii of theturns are 400 m.a. If the component of friction that is directed toward the center of the circle is35,435 N, at what angle must the corners be at in order to allow this type ofrace? (Show an FBD) (0 = 13°)b. What is the slowest speed a car can travel and still be able to go around acorner without falling to the bottom of the track? Ignore friction and give youranswer in km/h. (Show an FBD) (v = 29 m/s)

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DYNAMICS 1. A 5.0 kg block is placed on an incline. The mass is connected to a massless spring by means of a light string passed over a frictionless pulley, as shown in Figure 6. The spring has a force constant of 66 N.m. The block is released from rest, and the spring is initially unstretched. The block moves down the incline a distance of 28 cm before coming to a rest. What is the coefficient of kinetic friction between the block and the surface of the 40-degree incline? (µk = 0.35)

DYNAMICS 1. A 5.0 kg block is placed on an incline. The mass is connected to a massless spring by means of a light string passed over a frictionless pulley, as shown in Figure 6. The spring has a force constant of 66 N.m. The block is released from rest, and the spring is initially unstretched. The block moves down the incline a distance of 28 cm before coming to a rest. What is the coefficient of kinetic friction between the block and the surface of the 40-degree incline? (µk = 0.35)

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 39P: A student’s backpack, full of textbooks, is hung from a spring scale attached to the ceiling of an...

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