Simple Machine Problem Solutions
See solutions to simple machine problems involving pulleys, levers, and incline planes, Determine the efficiency, Mechanical advantage, and input force.
1. What is the output force of an incline plane used to lift a 61 kg refrigerator?
2. What length of ramp would have to be used to raise a 610 N box to a height of 1.1 m using a force of 180 N?
3. Which incline would require the most input force from you to raise a 15 kg mass? Why?
4. What is the actual mechanical advantage if Sam pushed a 610N box up an incline plane with a force of 220N?
5. What is the ideal mechanical advantage of the pulley system lifting the couch here?
6. What is the ideal mechanical advantage if Sam pushed a box 3.73 m up an incline plane to lift a box 1.1 m up on a truck bed?
7. You attempt to push a 3500 N washing machine up a 5.0 m ramp into your truck bed that stands 0.50 m above the ground.
a) What is the ideal mechanical advantage of the ramp?
b) If you need to exert a 450 N force to push the washing machine up the ramp with constant speed, what is the actual mechanical advantage?
c) What is the efficiency of the ramp?
Links
- Back to the Main Simple Machines Page
- Back to the Main Work, Power, Mechanical Energy, and Simple Machines Page
- Back to the Stickman Physics Home Page
- For video tutorials and other physics resources check out HoldensClass.com
- Find many of your animation resources in one place at the StickMan Physics Gallery
- Equation Sheet