Please this is a Gordon Rule question derived from 7th or 8thedition of general
ID: 1670384 • Letter: P
Question
Please this is a Gordon Rule question derived from 7th or 8thedition of general physics by James and susan Walker Q#1 (a) can a centripital force ever do work on an object? .please explain in great detail. (b)why is it easier to climb a steep mountain via a zigzagtrail (switchbacks) than to climb straight up? (c) how could a small force ever exert a greate torque than alarger force? . please explain in detail. (d) explain how conservation of angular momentum applies to anice skater spinning on the ice. Please this is a Gordon Rule question derived from 7th or 8thedition of general physics by James and susan Walker Q#1 (a) can a centripital force ever do work on an object? .please explain in great detail. (b)why is it easier to climb a steep mountain via a zigzagtrail (switchbacks) than to climb straight up? (c) how could a small force ever exert a greate torque than alarger force? . please explain in detail. (d) explain how conservation of angular momentum applies to anice skater spinning on the ice.Explanation / Answer
To make an analogy, when I garden I can either dig out a fullshovelful of soil each time, or take half-shovels. Taking out fullshovelsful means I dig fewer times but each is heavier, and prettysoon I'm really tired, not to mention probably starting with abackache, LOL!. But if I take just a half-shovel each time I'm wellwithin my body's lifting capacity. It'll take me twice as many cutsto move the same amount of dirt but I'll be able to keep up thepace longer.
c) Yes. The magnitude of Torque is equal to the magnitude of theForce applied multiplied by the length of the lever arm.
For example, a 20 Newton force applied to a 10 meter lever arm willhave a larger torque than a 50 Newton force applied to a 2 meterlever arm.
200 > 100
d)