- #1
holly
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Okay, in a different thread I asked a question about a block of ice and an incline plane and needed to know how to figure out the work and the force to move a 500N block up a 6m ramp, and also directly to the top of the ramp, 3m high.
I couldn't figure it out because I didn't know how to use the W=Fxd formula...the book gives only one little example, and it doesn't qualify the distance thing, to wit:
Could it be that the DISTANCE part of the formula refers to VERTICAL distance? I can't get it to make sense otherwise...but what about when a crate is pushed along the floor, and isn't raised? Is it still Vertical Distance or is it now flat distance? How can W=Fxd be valid for flat distance one time, and vertical the next? Isn't distance distance? I mean, the ramp was 6 m long. That's more distance than only 3 m up...
I couldn't figure it out because I didn't know how to use the W=Fxd formula...the book gives only one little example, and it doesn't qualify the distance thing, to wit:
Could it be that the DISTANCE part of the formula refers to VERTICAL distance? I can't get it to make sense otherwise...but what about when a crate is pushed along the floor, and isn't raised? Is it still Vertical Distance or is it now flat distance? How can W=Fxd be valid for flat distance one time, and vertical the next? Isn't distance distance? I mean, the ramp was 6 m long. That's more distance than only 3 m up...