Problems seeing the calculator? Click here to refresh the page. 1. 17N of force is applied over 14.7 metres using a lever. If the load arm is 3 metres long, what is the mass of the box rounded to the nearest tenth of a kilogram?
2. 416.5N of force is used to lift a 17 kg box using a class 1 lever (fulcrum in the middle). If the effort arm is 3.2 metres long, how long is the lever rounded to the nearest tenth of a metre?
3. A 26 kg box is raised up a ramp 0.5 metre long and 5 metres wide with a force of 98N. What is the volume of the ramp rounded to the nearest tenth of a cubic metre (assuming the ramp is a triangular prism)?
4. A machine raises a box 15 metres high with a force of 400N over 2.5 metres with an efficiency of 88.2%. What is the mass of the object rounded to the nearest tenth of a kilogram?
5. A ramp 10.1 metres long with a base of 9.9 metres is used to lift a load of 81 kg. If the mechanical advantage is 2.05 less than the ideal mechanical advantage, how much energy is wasted rounded to the nearest tenth of a percent? Too hard? Try the Practice Questions.
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Problems seeing the calculator? Click here to refresh the page.
1. 17N of force is applied over 14.7 metres using a lever. If the load arm is 3 metres long, what is the mass of the box rounded to the nearest tenth of a kilogram?
2. 416.5N of force is used to lift a 17 kg box using a class 1 lever (fulcrum in the middle). If the effort arm is 3.2 metres long, how long is the lever rounded to the nearest tenth of a metre?
3. A 26 kg box is raised up a ramp 0.5 metre long and 5 metres wide with a force of 98N. What is the volume of the ramp rounded to the nearest tenth of a cubic metre (assuming the ramp is a triangular prism)?
4. A machine raises a box 15 metres high with a force of 400N over 2.5 metres with an efficiency of 88.2%. What is the mass of the object rounded to the nearest tenth of a kilogram?
5. A ramp 10.1 metres long with a base of 9.9 metres is used to lift a load of 81 kg. If the mechanical advantage is 2.05 less than the ideal mechanical advantage, how much energy is wasted rounded to the nearest tenth of a percent?
Too hard? Try the Practice Questions.
Answers
Home Page | Input vs. Output Forces | Mechanical Advantage | Ideal Mechanical Advantage | Mechanical Efficiency | Practice Questions | Challenge Questions | Interactive Quiz | Bibliography