A penny is placed on a rotating turntable. where on the turntable does the penny require the largest centripetal force to remain

Question

Airida [17]

3 years ago

7

A penny is placed on a rotating turntable. where on the turntable does the penny require the largest centripetal force to remain

in place?

Physics

1 answer:

Mama L [17] · Answer 1 · 2022-07-04T17:58:04+03:00

m = mass of the penny

r = distance of the penny from the center of the turntable or axis of rotation

w = angular speed of rotation of turntable

F = centripetal force experienced by the penny

centripetal force "F" experienced by the penny of "m" at distance "r" from axis of rotation is given as

F = m r w²

in the above equation , mass of penny "m" and angular speed "w" of the turntable is same at all places. hence the centripetal force directly depends on the radius .

hence greater the distance from center , greater will be the centripetal force to remain in place.

So at the edge of the turntable , the penny experiences largest centripetal force to remain in place.