In a \"Rotor-ride\" at a carnival, people pay money to be rotated ina vertical c
ID: 1681295 • Letter: I
Question
In a "Rotor-ride" at a carnival, people pay money to be rotated ina vertical cylindrically walled "room." If the room radius is 4.3m, and the rotation frequency is 0.7 revolutions per second whenthe floor drops out, what is the minimum coefficient of staticfriction so that the people will not slip down?A hockey puck of mass m = 70 g is attachedto a string that passes through a hole in the center of a table, asshown in the figure below. The hockey puck moves in a circle ofradius r = 0.80 m. Tied to the other end of thestring, and hanging vertically beneath the table, is amass M = 1.20 kg. Assuming the tabletop isperfectly smooth, what speed must the hockey puck have if themass M is to remain at rest?
A hockey puck of mass m = 70 g is attachedto a string that passes through a hole in the center of a table, asshown in the figure below. The hockey puck moves in a circle ofradius r = 0.80 m. Tied to the other end of thestring, and hanging vertically beneath the table, is amass M = 1.20 kg. Assuming the tabletop isperfectly smooth, what speed must the hockey puck have if themass M is to remain at rest?
A hockey puck of mass m = 70 g is attachedto a string that passes through a hole in the center of a table, asshown in the figure below. The hockey puck moves in a circle ofradius r = 0.80 m. Tied to the other end of thestring, and hanging vertically beneath the table, is amass M = 1.20 kg. Assuming the tabletop isperfectly smooth, what speed must the hockey puck have if themass M is to remain at rest?
Explanation / Answer
1) m(Ac)=mg (Ac)=g Ac=v^2/r circumference=8.6=27.004m 27.004*0.7r/s=18.9028m/s Ac=18.9028^2/4.3m Ac=83.0967m/s/s g/Ac= g=9.8m/s/s =0.118 Question 2 is coming up soon