6. Intro to Forces (Dynamics)
Equilibrium in 2D
6. Intro to Forces (Dynamics)
Equilibrium in 2D
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- Multiple Choice
A chandelier is supported from the ceiling by 2 chains. Both chains make a 30° angle with the vertical. The tension in each chain is the same because of symmetry:T1=T2=50 N. What is the mass of the chandelier?
1642views17rank7comments - Multiple Choice
A sphere hangs suspended by a light string, resting against a vertical wall. The sphere has a mass of 2 kg and the string makes an 80° angle with the horizontal. What is the force from the wall against the ball?
1585views26rank10comments - Textbook QuestionFind the tension in each cord in Fig. E5.7 if the weight of the suspended object is w.5258views
- Textbook QuestionA large wrecking ball is held in place by two light steel cables (Fig. E5.6). If the mass m of the wrecking ball is 3620 kg, what are (a) the tension TB in the cable that makes an angle of 40° with the vertical and (b) the tension TA in the horizontal cable?3292views
- Textbook QuestionA 1130-kg car is held in place by a light cable on a very smooth (frictionless) ramp (Fig. E5.8). The cable makes an angle of 31.0° above the surface of the ramp, and the ramp itself rises at 25.0° above the horizontal. (b) Find the tension in the cable.1858views
- Textbook QuestionA picture frame hung against a wall is suspended by two wires attached to its upper corners. If the two wires make the same angle with the vertical, what must this angle be if the tension in each wire is equal to 0.75 of the weight of the frame? (Ignore any friction between the wall and the picture frame.)628views