A communications tower is located at the top of a steep hill, as shown. The angle of inclination of the hill is 62°. A guy wire is to be attached to the top of the tower and to the ground, 163 ft downhill from the base of the tower. The angle formed by the guy wire is 10°. Find the length of the cable required for the guy wire.

Q: A 10.5 m fire truck ladder is leaning against a wall. Find the distance d the ladder goes up the…

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Q: A crate of mass m = 9.7 kg is pulled up a rough incline with an initial speed of v₁ = 1.43 m/s. The…

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Q: Two vertical cables suspend a 354-N, 1.94-m uniform bar at each end. Cable A can support a maximum…

A: In this question we are given that two vertical cables suspend a 354 N 1.94 m uniform bar at each…

Q: A horizontal force of 130 N is applied to a stationary wooden box in one direction, and a 810 N…

A: From Newton’s first law of motion, the block to remain stationary the net force acting on the block…

Q: y ca cosh

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Q: A trolley that moves along a horizontal beam is acted upon by two forces as shown. (a) Knowing that…

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Q: A traffic light weighs 234.0 N and is supported by two wires with an angle of 107.3° between them.…

A: Tension in each wire is 197.4 N. Explanation:

Q: You have recently purchased a house and need to purchase an extension ladder. The highest window is…

A: Analyze the diagram of the given situation.

Q: A conveyor is used to lift paper to a shredder. The most efficient operating angle of elevation for…

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Q: International computer communications are often carried by optical fibers in cables laid along the…

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Q: A horizontal force of 130 N is applied to a stationary wooden box in one direction, and a 800 N…

A:

Q: The figure shows a sign in front of a hardware store that is supported by two wires. The horizontal…

A: Given data TH=27 NTV=63 N

Q: A person who mass is m=72.0kg steps onto a mechanical bathroom scale on an incline at an angle of…

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Q: An 8-m-long beam, weighing 14,700 N, is hinged to a wall and supported by a light rope that is…

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Q: Consider the figure below. 45.0° 45.0° 60.0 N 60.0 N (a) What is the resultant force exerted by the…

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Q: In a tug-of-war game on one campus, 15 students pull on a rope at both ends in an effort to displace…

A: Let us tabulate the given data: Number of students Applied force by each (N) Direction 2 198…

Q: Rovhaun is attaching a support rope of 52 m to the top of a telephone pole. The rope is attached at…

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Q: The upper leg muscle (quadriceps) exerts a force of FQ = 1140 N, which is carried by a tendon over…

A: The free body diagram is shown as,

Q: Draw a physical model and associated FBD of the cable supporting a street lamp. Assume that the…

A: (i) Physical model,   (ii) FBD of the cable supporting a street lamp.

Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).