In 2002, professional skateboarder Bob Burnquist (60 kg) became the first to successfully complete a 360° full pipe turn. If he navigates the pipe at 5.5 m/s, with what force does the pipe push down on him when he is at the top? The pipe has a radius of 2.5 m

In 2002, professional skateboarder Bob Burnquist (60 kg) became the first to successfully complete a 360° full pipe turn. If he navigates the pipe at 5.5 m/s, with what force does the pipe push down on him when he is at the top? The pipe has a radius of 2.5 m

Name: In 2002, professional skateboarder Bob Burnquist (60 kg) became the fi
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Description: In 2002, professional skateboarder Bob Burnquist (60 kg) became the first to successfully complete a 360° full pipe turn. If he navigates the pipe at 5.5 m/s, with what force does the pipe push down on him when he is at the top? The pipe has a radius

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter5: More Applications Of Newton’s Laws

Section: Chapter Questions

Problem 17P: A light string can support a stationary hanging load of 25.0 kg before breaking. An object of mass m...

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A car of mass 1 230 kg travels along a circular road of radius 60.0 m at 18.0 m/s. (a) Calculate the magnitude of the cars centripetal acceleration. (b) What is the magnitude of the force of static friction acting on the car? (See Section 7.4.)
A single bead can slide with negligible friction on a stiff wire that has been bent into a circular loop of radius 15.0 cm as shown in Figure P5.59. The circle is always in a vertical plane and rotates steadily about its vertical diameter with a period of 0.450 s. The position of the bead is described by the angle θ that the radial line, from the center of the loop to the bead, makes with the vertical. (a) At what angle up from the bottom of the circle can the bead stay motionless relative to the turning circle? (b) What If ? Repeat the problem, this time taking the period of the circle’s rotation as 0.850 s. (c) Describe how the solution to part (b) is different from the solution to part (a). (d) For any period or loop size, is there always an angle at which the bead can stand still relative to the loop? (e) Are there ever more than two angles? Arnold Arons suggested the idea for this problem. Figure P5.59
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In Figure P3.55, a spider is resting after starting to spin its web. The gravitational force on the spider makes it exert a downward force of 0.150 N on the junction of the three strands of silk. The junction is supported by different tension forces in the two strands above it so that the resultant force on the junction is zero. The two sloping strands are perpendicular, and we have chosen the x and y directions to be along them. The tension Tx is 0.127 N. Find (a) the tension Ty, (b) the angle the x axis makes with the horizontal, and (c) the angle the y axis makes with the horizontal.
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A light string can support a stationary hanging load of 25.0 kg before breaking. An object of mass m = 3.00 kg attached to the string rotates on a frictionless, horizontal table in a circle of radius r = 0.800 m, and the other end of the string is held fixed as in Figure P5.17. What range of speeds can the object have before the string breaks? Figure P5.17
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