Chen is testing the friction of three surfaces. He pushes the same ball across three different surfaces with the same force and
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Answer:
The angle that the piece of cloth will lose contact with the wall would be
Explanation:
for a body moving in a circular path The net force is equal to the centripetal force and can be calculated thus;
mgsin θ = mr
isolating sine θ
sin θ = r/ g
where w is the angular velocity = 41.5 rev/min = 41.5 rev/min x 2π/60 secs = 4.34587 rad/s
r is the radius = = d/2 = 0.692/2 = 0.3145 m
g is the acceleration due to gravity = 9.8 m/
sin θ = ( x 0.3145)/ 9.8
sin θ = 0.6061
θ = 0.6061
θ =
Therefore the angle that the piece of cloth will lose contact with the wall would be