інің қосындысын анықтаңдар;
Мсол М1М2. . . Мк;
оң және теріс күш моменттерін салыстыра отырып, экспериментте
алынған нәтижелердің моменттер ережесіне сәйкестігін көрсетіңдер.
Application
Topic: determining the conditions of balance of the shoulders. Purpose: experimental verification of the correctness of the rules of force moments using a lever.
Equipment: a shoulder mounted on a tripod, a set of weights, a ruler, a dynamometer.
Task 1. Checking the conditions of balance of the shoulders in the action of two forces. Courses: Repeat in the textbook materials about "shoulder", "balance of forces caught in the shoulder", " moments of force" ; twist the screws on both ends of the shoulders and balance it so that the horizontal; hitch two loads with summation of masses at a distance of M1 from the left shoulder hair. Conduct an experiment and determine at what distance from the surface of the shoulders can be suspended at a distance of one load, resulting in the balance of the shoulders. Write the data in the table below: Weight, m1 (g) Shoulder width 1 (cm) Force, F1 (H) Moment of force, M1 (N::m) Weight, m 2 (g) Shoulder, width 2 (cm) Force, F2 (H) Moment of force, M2 (N m) Comparing the moments of force M1 and M2, determine that the results of the experiment deviate saturation from the position of the moments. To determine the deviation, the difference in the moments of forces (M1-M2) should be divided by their average value: Deviation (M1-M2): (M1M2)/2::100
Task 2. Checking the conditions of balance of the shoulders in the action of forces lowered to different points. Courses: bring the shoulder into an equilibrium position, following the different weights on any hook on either side of the shaft;
Страницы: << < 3 | 4 | 5 | 6 | 7 > >>