Which describes how a simple machine can make work easier?

Question

anonymous · Answer

attachment

anonymous · Answer

These are the choices above.

anonymous · Answer

Help!

anonymous · Answer

What do you think? 
The work done by something is equal to the work applied, as Newton's third law would tell us.

anonymous · Answer

I think it is C.
This stuff is not my strong point. : (

anonymous · Answer

Think of any simple machine, the point is to put the least amount of effort but get the greatest output right? That's why we have machines.

anonymous · Answer

So what can you say

anonymous · Answer

Because it doesn't increase the input force

anonymous · Answer

No, it can't increase the input force

anonymous · Answer

So would it be D.?

anonymous · Answer

I've basically given you the answer, just think rationally, what does a machine do?

anonymous · Answer

Don't think about energy, we're focusing on forces

anonymous · Answer

So B. Then

anonymous · Answer

No, you actually said it earlier, it cannot increase the input force

anonymous · Answer

Oh, oops

anonymous · Answer

No worries :), so what do you think

anonymous · Answer

It has to be A. then. Since b, c, and d were wrong.

anonymous · Answer

Yes, it's A, but that's not the right thinking, you're basically guessing, try to understand why it is.

anonymous · Answer

`It magnifies the input force so that the force is greater`

anonymous · Answer

Ok. Let me think about it for a moment. Also thank you very much for the help.

anonymous · Answer

Np

anonymous · Answer

I tried thinking about it, but it says "magnifies the input force..." it just makes no sense.