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In forging pressure P and longitudinal stress (σx
) build up to a maximum value at the centre
of the plate(work), and reduce to a minimum value at the edge(end) of the plate. When this
variation in P & ( σx
) is plotted over the entire length, a peak exists at the centre,
resembling a "hill".
This plot is called as friction hill.
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In what way is friction useful to a skydiver?
Friction (from air resistance) stops them from falling faster and faster continually - instead they reach a maximum velocity and stay at that speed until they pull their parachute. Friction prevents them from plummeting to their death.
What are advantages of wheel?
Rolling friction is less than sliding friction so it is easier to move heavier objects using wheels.
When you stand on a slope why don't you slide?
That depends on the friction, or grip, between your feet and the surface you are standing on. Its a battle between gravity and friction. If you are in bare feet on ice, mud, or wet grass or clay, gravity wins and you take a tumble. If you are wearing hiking boots on rock, stone, or any surface with a little friction, friction wins.
What contributions did charlotte angas Scott do for mathematics?
Charlotte Angas Scott was a revolutionary forging through various obstacles to acquire numerous firsts for women in the field of mathematics.
What is the unit measure of friction?
As friction is also just a type of force (an oppsoing force), it's standard unit is also Newton as of any other force.
