over time the handykapped people have the good use of a ramp
Chat with our AI personalities
Well, honey, a screw is called an inclined plane because it's basically a fancy version of one. See, a screw is just a spiral-shaped inclined plane wrapped around a cylinder. So next time you're twisting in a screw, just remember you're really just using a glorified ramp.
On a screw, the threads are basically inclined planes, but facing down to help guide the screw into the wood. Using the inclined plane on the threads increases the time it takes rather than a nail, but it takes less energy to do it.
The inclined plane has been around forever. It's how the pyramids were built. Also, other primates use them besides humans. This is kind of like asking, "Who invented the wheel." The answer, unfortunately has been lost to time.
Well, honey, inclined planes in the house are everywhere! Think of your ramps, stairs, even your dang driveway - all inclined planes helping you move things around easier. So next time you're struggling to lug that heavy furniture up the stairs, just remember to thank good ol' inclined planes for making your life a little less miserable.
Work: don't care about time (that's power) frictionless means don't care about length of plane only care about height and mass -- figure 9.8 m/s*s for acceleration of gravity F=ma F times distance (up) = work good luck