405 joiht, as SHOWH II FIg. 0.01. P-6.15. An object of mass M= 10 kg is lifted by a standard man with the aid of a pulley, as shown in Fig. 6.62. The upper arm is held vertical and the lower arm has an angle of 0= 35° with the horizontal. The label c.m. marks the centre of mass of the lower arm. Consider the force due to the weight of the object M, the weight of the lower arm and hand, the tension due to the triceps muscle, and the force due to the humerus. For the lengths, we use the following values: 1, = 2 cm, , = 15 cm, and l = 40 cm. The lower arm and the hand have a mass of 2.3 kg. (a) What is the magnitude of the vertical force exerted on the lower arm by the triceps muscle, and (b) what is the magnitude of the vertical force exerted on the lower arm by the humerus? Hint: The triceps muscle pulls ver- tically upward.
405 joiht, as SHOWH II FIg. 0.01. P-6.15. An object of mass M= 10 kg is lifted by a standard man with the aid of a pulley, as shown in Fig. 6.62. The upper arm is held vertical and the lower arm has an angle of 0= 35° with the horizontal. The label c.m. marks the centre of mass of the lower arm. Consider the force due to the weight of the object M, the weight of the lower arm and hand, the tension due to the triceps muscle, and the force due to the humerus. For the lengths, we use the following values: 1, = 2 cm, , = 15 cm, and l = 40 cm. The lower arm and the hand have a mass of 2.3 kg. (a) What is the magnitude of the vertical force exerted on the lower arm by the triceps muscle, and (b) what is the magnitude of the vertical force exerted on the lower arm by the humerus? Hint: The triceps muscle pulls ver- tically upward.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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