Simple Machines B/Compound Machines C Question Marathon

[SWAnG]

isnt it pi/.03

[Algorhythmic]

Been a while since someone's asked a question, so I'll go for it.

Name one example from each of the six kinds of simple machine in which an IMA of less than one can be potentially useful. If impossible or no examples can be found, explain your reasoning.

[SWAnG]

lever: tweezers
Wheel and axle: wind up toys
Wedge: maybe like spinning tops? (so they don't actually go into the surface)
Screw: Really deep pitch, so you can screw things on quickly
Pulley: Strength contests, so you don't need as heavy of weights. Weight lifting machines as well.
Inclined Plane: Stunt car ramps, higher and cooler jumps that way

[Algorhythmic]

I don't believe that an inclined plane can have an IMA of less than one.

[SWAnG]

Oh yes, true true.

[Algorhythmic]

This is probably me being stupid, but can a pulley have an IMA less than one? I feel like it can't

[SWAnG]

well i was thinking of placing it in the reverse way. In a pulley system when you have a mechanical advantage, the other side technically has a "mechanical disadvantage" right?

[Algorhythmic]

Hmmmmm. I'm not completely sure about this one, actually. If anyone is more physics-y than myself, I invite you to give us an opinion.

[bearasmith]

Correct!

What's the ideal mechanical advantage of a screw if it's radius is .5cm and the pitch is .03cm

ANSWER (Click to Show Hidden Text)

1. * 10^2

[Algorhythmic]

Does anyone have any opinion in our debate for the last page that continued to this page? I've been wondering about the inverse force of a pulley for a week now without explanation.