I believe the answer is A.
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Answer:
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.
Explanation:
D=m/v
m=67.2 g
v=2^3=8 cm3
d=67.2/8
d=8.4 g/cm3
In this case to find the weight of an object you must use the formula.
W = mg
because i said so
the answer is 80 diveded by 8 equalzzzz
