A solid bar of length L has a mass m 1. The bar is fastened by a pivot at one end to a wall which is at an angle θ with respect to the horizontal. The bar is held horizontally by a vertical cord that is fastened to the bar at a distance x from the wall. A mass m2 is suspended from the free end of the bar. Find the tension in the cord.
1. T = (m1 + 1/2 m2) (L/x) gcosθ
2. T = (m1 + m2) gsinθ
3. T = (m1 + m2) gcosθ
4. T = (m1 + m2) (L/x) (g/2)
5. T = 0
6. T = (m1 + 1/2 m2) (L/x) g
7. T = (m1 + 1/2 m2) (L/x) gsinθ
8. T = (1/2 m1 + m2) (L/x) gsinθ
9. T = (1/2 m1 + m2) (L/x) g
10. T = (1/2 m1 + m2) (L/x) gcosθ
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Our tutors have indicated that to solve this problem you will need to apply the Beam / Shelf Against a Wall concept. You can view video lessons to learn Beam / Shelf Against a Wall. Or if you need more Beam / Shelf Against a Wall practice, you can also practice Beam / Shelf Against a Wall practice problems.
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