Potential And Kinetic Energy Worksheet (Page 19 of 29) in pdf

Potential And Kinetic Energy Worksheet Page 19

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9.2

1. A machine uses an input force of 200 newtons to produce an output force of 800 newtons. What is

the mechanical advantage of this machine?

2. Another machine uses an input force of 200 newtons to produce an output force of 80 newtons. What is the

mechanical advantage of this machine?

3. A machine is required to produce an output force of 600 newtons. If the machine has a mechanical

advantage of 6, what input force must be applied to the machine?

4. A machine with a mechanical advantage of 10 is used to produce an output force of 250 newtons. What input

force is applied to this machine?

5. A machine with a mechanical advantage of 2.5 requires an input force of 120 newtons. What output force is

produced by this machine?

6. An input force of 35 newtons is applied to a machine with a mechanical advantage of 0.75. What is the size

of the load this machine could lift (how large is the output force)?

7. A machine is designed to lift an object with a weight of 12 newtons. If the input force for the machine is set

at 4 newtons, what is the mechanical advantage of the machine?

8. An input force of 50. newtons is applied through a distance of 10. meters to a machine with a mechanical

advantage of 3. If the work output for the machine is 450 newton · meters and this work is applied through a

distance of 3 meters, what is the output force of the machine?

9. 200. newton·meters of work is put into a machine over a distance of 20. meters. The machine does 150.

newton·meters of work as it lifts a load 10. meters high. What is the mechanical advantage of the machine?

10. A machine has a mechanical advantage of 5. If 300. newtons of input force is used to produce

3,000. newton·meters of work,

What is the output force?

b. What is the distance over which the work is applied?

Potential And Kinetic Energy Worksheet Page 19