2. The engine of a motorcycle is suspended in the air inside a repair shop. The supporting system is composed of two cables, AC and CD, a pulley B, and a ring C, all with negligible mass. If the cables AC and CD can each carry a maximum of 0.6 kN force, calculate the maximum mass of an engine that can safely be supported using this system for 0 = 30°. 0 1.5 m 0.9 m s

2. The engine of a motorcycle is suspended in the air inside a repair shop. The supporting system is composed of two cables, AC and CD, a pulley B, and a ring C, all with negligible mass. If the cables AC and CD can each carry a maximum of 0.6 kN force, calculate the maximum mass of an engine that can safely be supported using this system for 0 = 30°. 0 1.5 m 0.9 m s

Name: Help!!! Answer clearly 2. The engine of a motorcycle is suspended in t
Uploaded: 2024-03-20T06:51:10.000Z
Channel: Bartleby
Description: Help!!! Answer clearly 2. The engine of a motorcycle is suspended in the air inside a repair shop. The supportingsystem is composed of two cables, AC and CD, a pulley B, and a ring C, all with negligiblemass. If the cables AC and CD can each carry a

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter14: Static Equilibrium, Elasticity, And Fracture

Section: Chapter Questions

Problem 67PQ

See similar textbooks

Similar questions

Three light, inextensible strings are tied to the small, light ring, C. Two ends are attached to the ceiling at points A and B, making angles α = 36.9o and β = 60.0o as shown. The third has a mass m = 2.02 kg hanging from it at point D. The system is in equilibrium. What is the magnitude of the tension in the string AC?
Suppose that k = 190 N/m 1.Determine the unstretched length of DB to hold the 40-kg crate in the position shown.
In the figure, a motor weighing 3000 N hangs on a chain attached by an O-ring to two other chains, one attached to the ceiling and the other to the wall. Calculate the tensile force acting on the chain attached to the wall. Consider that the weights of the chains and the ring are negligible.
A one-string Aeolian harp is constructed by attaching the lower end of a 1.66-m-long rigid and uniform pole with a mass of 8.00 kg to a tree at a pivot and then using a light rope to hang a 39.0-cm-long hollow steel tube with a mass of 4.00 kg from its upper end. A horizontal wire between the pole and the tree is attached to the pole at a height h above the pivot and holds the pole at a 45.0∘C angle with the vertical. The wire is uniform and has linear mass density μ=1.40 g/m. When the wind blows, the wire resonates at its fundamental frequency. The height h is chosen such that the sound emitted by the wire stimulates the fundamental standing wave in the tube, which harmonizes with the resonating wire. The speed of sound in air is 344 m/s. What is the frequency of the note produced by this instrument?
When a person stands on tiptoe on one foot (a strenuous position), the position of the foot is as shown in Figure P12.32a. The total gravitational force Fg on the body is supported by the normal force n exerted by the floor on the toes of one foot. A mechanical model of the situation is shown in Figure P12.32b, where T is the force exerted on the foot by the Achilles tendon and R is the force exerted on the foot by the tibia. Find the values of T, R, and when Fg = 700 N. Figure P12.32
A horizontal, rigid bar of negligible weight is fixed against a vertical wall at one end and supported by a vertical string at the other end. The bar has a length of 50.0 cm and is used to support a hanging block of weight 400.0 N from a point 30.0 cm from the wall as shown in Figure P14.81. The string is made from a material with a tensile strength of 1.2 108 N/m2. Determine the largest diameter of the string for which it would still break. FIGURE P14.81
Integrated Concepts The Tethered Satellite in Figure 23.12 has a mass at 525 kg and is at the end of a 20.0 km long, 2.50 mm diameter cable with the tensile strength of steel. (a) How much does the cable stretch if a 100 N force is exerted to pull the satellite in? (Assume the satellite and shuttle are at the same altitude above the Earth.) (b) What is the effective force constant of the cable? (c) How much energy is stored in it when Stretched by the 100 N force?
When an object is displaced by an amount x from stable equilibrium, a restoring force acts on it, tending to return the object to its equilibrium position. The magnitude of the restoring force can be a complicated function of x. In such cases, we can generally imagine the force function F(x) to be expressed as a power series in x as F(x)=(k1x+k2x2+k3x3+). The first term here is just Hookes law, which describes the force exerted by a simple spring for small displacements. For small excursions from equilibrium, we generally ignore the higher-order terms, but in some cases it may be desirable to keep the second term as well. If we model the restoring force as F = (k1x + k2x2), how much work is done on an object in displacing it from x = 0 to x = xmax by an applied force F?
When a circus performer performing on the rings executes the iron cross, he maintains the position at rest shown in Figure P12.37a. In this maneuver, the gymnasts feet (not shown) are off the floor. The primary muscles involved in supporting this position are the latissimus dorsi (lats) and the pectoralis major (pecs). One of the rings exerts an upward force Fk on a hand as show n in Figure P12.37b. The force Fs, is exerted by the shoulder joint on the arm. The latissimus dorsi and pectoralis major muscles exert a total force Fm on the arm. (a) Using the information in the figure, find the magnitude of the force Fm for an athlete of weight 750 N. (b) Suppose a performer in training cannot perform the iron cross but can hold a position similar to the figure in which the arms make a 45 angle with the horizontal rather than being horizontal. Why is this position easier for the performer? Figure P12.37
Why is the following situation impossible? A worker in a factory pulls a cabinet across the floor using a rope as shown in Figure P12.36a. The rope make an angle = 37.0 with the floor and is tied h1 = 10.0 cm from the bottom of the cabinet. The uniform rectangular cabinet has height = 100 cm and width w = 60.0 cm, and it weighs 400 N. The cabinet slides with constant speed when a force F = 300 N is applied through the rope. The worker tires of walking backward. He fastens the rope to a point on the cabinet h2 = 65.0 cm off the floor and lays the rope over his shoulder so that he can walk forward and pull as shown in Figure P12.36b. In this way, the rope again makes an angle of = 37.0 with the horizontal and again has a tension of 300 N. Using this technique, the worker is able to slide the cabinet over a long distance on the floor without tiring. Figure P12.36 Problems 36 and 44.
Review. One end of a light spring with force constant k = 100 N/m is attached to a vertical wall. A light string is tied to the other end of the horizontal spring. As shown in Figure P12.57, the string changes from horizontal to vertical as it passes over a pulley of mass M in the shape of a solid disk of radius R = 2.00 cm. The pulley is free to turn on a fixed, smooth axle. The vertical section of the string supports an object of mass m = 200 g. The string does not slip at its contact with the pulley. The object is pulled downward a small distance and released. (a) What is the angular frequency of oscillation of the object in terms of the mass M? (b) What is the highest possible value of the angular frequency of oscillation of the object? (c) What is the highest possible value of the angular frequency of oscillation of the object if the pulley radius is doubled to R = 4.00 cm? Figure P12.57
A 10-kg mass is attached to a spring having a spring constant 140 N/m. The mass is started in motion from the equilibrium position with an initial velocity of 1m/sec in the upward direction and with an applied external force of f(t) =20cost (in Newtons). The mass is in a viscous medium with a coefficient of resistance equal to 90 N – sec/m. a) What should be noted to avoid disastrous consequences to the system?