LEx. 54: A coin just remains on a disc rotating at a steady rate of 180 r.p.m. A coin is kept at a distance of 2 cm from the axis of rotation. Find the coefficient of friction between the coin and the disc.

Q: (a) A 19.0 kg child is riding a playground merry-go-round that is rotating at 35.0 rev/min. What…

A: a) Given, mass of a child is ma = 19 kg the radius of the path is, r=2m revolution speed is,…

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A: A pendulum swing can be considered as a small part of vertical rotation. Therefore, other than…

Q: 1. A car of mass 1310 kg enters a banked turn with a banking angle of 9.51° and radius of 435 m at a…

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Q: Would need the Friction on Block A. The Moment of inertia around the hub of the circle. Angular…

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Q: Two bugs, Buzz and Crunchy, are siting on a spinning disk on a horizontal plane. Buzz is sitting…

A: Given that:ω=38 rpm=38×2π60=3.98 rad/sμs=0.80 μk=0.60R=0.80 mmBuzz=2.0 kg The maximum value of…

Q: Problem 5: A wind turbine blade with a radius of 32 m and a mass of 690 kg is rotating at 0.75…

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Q: A car travels on a horizontal road in a circle of radius 10 m. If the car can travel with a maximum…

A: Given data:  Radius (r) = 10 m Maximum speed (v) = 10 m/s Acceleration due to gravity (g) = 10 m/s2…

Q: 3. You stand on a merry-go-round which is spinning at f = 0.25 revolutions per second. You are R =…

A: Solution:

Q: 19. Some people have the wrong idea that there is a force that tends to push the circling object…

A: We have to fill in the blanks from question 19 to 23 The answer is uploaded below

Q: An LP record rotates at 33.33 revs/min. A penny is placed flat on the record a distance 8cm from the…

A: Given: Angular velocity, ω=33.33 revs/min Distance, r=8 cm=0.08 m Static coefficient friction=μs

Q: (b) A grindstone in the shape of a solid disk with diameter 0.520 m and a mass of 50.0 kg is…

A: Given that,d=0.520 mm=50 kgω0= 850 rev/minF=160 NInitial Angular velocity, ω0= 850…

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Q: 11) At takeoff a commercial jet has a 75.0 m/s speed. Its tires have a diameter of 0.700 m.   (a) At…

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Q: An LP record rotates at 33.33 revs/min. A penny is placed flat on the record a distance 8cm from the…

A:

Q: Ex. 54: A coin just remains on a disc rotating at a steady rate of 180 r.p.m. A coin is kept at a…

A: Solution:-Given thatN=180 rpmr=2 cm=0.02 m

Q: (b) A grindstone in the shape of a solid disk with diameter 0.520 m and a mass of 50.0 kg is…

A: Given that-d=0.520 mm=50 kgω0= 850 rev/minF=160 NInitial Angular velocity, ω0= 850…

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A: An essential property of matter is inertia, measured by mass. The resistance to change in speed or…

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A: Here, we use the dynamics of circular motion to get required.

Q: ​An LP record rotates at 33.33 revs/min. A penny is placed flat on the record a distance 8cm from…

A: For penny to remain stationary the centripetal force should be equal to the friction force.

Q: 3. In a Bangladesh-Australia cricket match, Sakib Al Hasan throws a ball towards the batsman. The…

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Q: (a) A shiny coin is on a rough horizontal turntable at a distance 0.8 m from its centre. The…

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Q: A road with a radius of 75.0 m is banked so that a car can navigate the curve at a speed of 13.2 m/s…

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Q: A 50.0-kg child stands at the rim of a merry-go-round of radius 2.90 m, rotating with an angular…

A: Given :           mass m = 50 kg           radius r = 2.90       angular speed ω= 3.65 rad/si…

Q: 1. A car of mass 1310 kg enters a banked turn with a banking angle of 9.51° and radius of 435 ma a…

A: Given : Mass is denoted by  ,m=1310kg Angle=9.51° Radius is denoted by , r=435m Velocity is denoted…

Q: 15. A road is banked at an angle of 10 degrees. If the road is iced over (no friction), the maximum…

A: The given data are listed below with appropriate variables. Here, θ denotes the angle of the banked…

Q: 5 kg on 30-degree ramp, coefficient of friction 0.35, 97 kg hanger, pulley moment of inertia = Z.…

A: We have given that, m1 = 4 Kg and m2= 97 Kg. The friction coefficient is μ=0.25. The radius is r =…

Q: At takeoff a commercial jet has a 60.0 m/s speed. Its tires have a diameter of 0.700 m. (a) At how…

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Q: A highway curve has a radius of 0.14 km and is unbanked. A car weighing 12 kN goes around the curve…

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