Problem: A mechanical lift is used to raise a heavy load. The lift consists of a horizontal platform of length L drawn by vertical cables on either end of the platform. The platform has a mass m. The load has mass 4m and is placed a distance L/4 from the right end of the lift. The acceleration due to gravity is g. What is the tension in the right vertical cable? 1. (2/3) mg 2. (2/7) mg 3. (7/2) mg 4. (3/2) mg 5. (7/4) mg 6. (4/5) mg 7. mg 8. (1/3) mg 9. (5/4) mg 10. 3mg

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Problem Details

A mechanical lift is used to raise a heavy load. The lift consists of a horizontal platform of length L drawn by vertical cables on either end of the platform. The platform has a mass m. The load has mass 4m and is placed a distance L/4 from the right end of the lift. The acceleration due to gravity is g. What is the tension in the right vertical cable?

1. (2/3) mg

2. (2/7) mg

3. (7/2) mg

4. (3/2) mg

5. (7/4) mg

6. (4/5) mg

7. mg

8. (1/3) mg

9. (5/4) mg

10. 3mg

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Equilibrium with Multiple Supports concept. You can view video lessons to learn Equilibrium with Multiple Supports. Or if you need more Equilibrium with Multiple Supports practice, you can also practice Equilibrium with Multiple Supports practice problems.

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