Solution to problem 15.4.2 from the collection of Kepe O.E.

Task 15.4.2

For a given position of the mechanism, it is necessary to determine the kinetic energy of the connecting rod AB with mass m = 1 kg. The crank OA has a length of 0.5 m and rotates around the axis O with an angular velocity ? = 2 rad/s.

Answer: 0.5.

To solve this problem, it is necessary to use the formula for the kinetic energy of a solid body:

K = (mv^2)/2,

where m is the mass of the body, v is the speed of the body.

To find the speed of the connecting rod AB, it is necessary to determine the angular velocity ? crank OA and linear speed v of point B at the end of the connecting rod AB.

Angular velocity? crank OA is determined and equal to 2 rad/s. The linear speed v of point B at the end of the connecting rod AB can be found using the following formula:

v = r * ?,

where r is the radius of the connecting rod AB, equal to the length of the crank OA, that is, 0.5 m. Substituting the known values, we get:

v = 0.5 * 2 = 1 m/s.

Now we can find the kinetic energy of the connecting rod AB:

K = (mv^2)/2 = (1 * 1^2)/2 = 0.5 J.

Thus, the kinetic energy of the connecting rod AB in this position of the mechanism is 0.5 J.

Solution to problem 15.4.2 from the collection of Kepe O..

This digital product is a solution to problem 15.4.2 from the collection of problems on physics by Kepe O.. The solution is presented in the form of an electronic document in PDF format and is an ideal assistant for students and schoolchildren studying physics.

The solution to this problem describes in detail the process of determining the kinetic energy of a connecting rod AB weighing 1 kg, which is connected to a crank OA 0.5 m long. The solution contains a detailed algorithm of actions, formulas and calculations that will help you understand and master this material.

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Product characteristics:

• Format: PDF
• Russian language
• Volume: 2 pages

How to use:

After purchasing the product, you can download it in PDF format and read it on your device. The solution to the problem can be used as a textbook or reference book when studying physics, as well as a source of additional problems for independent solution.

Price:

The price of this digital product is 100 rubles.

A digital product is offered - a solution to problem 15.4.2 from the collection of problems in physics by Kepe O.?. The product is presented in PDF format and consists of 2 pages in Russian. The solution to the problem describes the process of determining the kinetic energy of a connecting rod AB weighing 1 kg, which is connected to a crank OA 0.5 m long and rotates around the axis O with an angular velocity ? = 2 rad/s. The solution contains a detailed algorithm of actions, formulas and calculations that will help you understand and master this material. As a result of solving the problem, the answer was obtained - the kinetic energy of the connecting rod AB is equal to 0.5 J. The solution to the problem can be used as a textbook or reference book when studying physics, as well as a source of additional problems for independent solution. The cost of the product is 100 rubles.

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