A unicorn is standing on a rotating platform, so that it can be admired from every angle. The platform is 5 m in radius and rotates every 8 seconds (otherwise known as 1/8 of a rotation per second). A. What velocity will the unicorn have if it is on the edge of the platform? B. What coefficient of friction must the unicorn's hooves have to keep him from slipping over the edge?

Q: s at his side, on a

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Q: A typical road bike wheel has a diameter of 70 cm including the tire. In a time trial, when a…

A: d = 70 cm = 0.70 m Then, r = d/2 = 0.35 m

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Q: During the spin cycle of a washing machine, the clothes stick to the outer wall of the barrel as it…

A: Given Data, Angular Velocityω=1800 rpm Radius of the barrel (r)=0.26 m

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Q: Medical testing has established that the maximum acceleration a pilot can be subjected to without…

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Q: 49. A 200 g, 20-cm-diameter plastic disk is spun on an axle through its center by an electric motor.…

A: Determine the moment of inertia of the disk.

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A: a) The acceleration of the car will be centripetal. The centripetal acceleration will be radial. It…

Q: ball on the end of a string is moving in a circular motion as a conical pendulum as in the figure…

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Q: A Ferris wheel with radius R = 15.0 m is turning about a horizontal axis through its center in the…

A: Given that,Radius R =15 mlinear velocity of passenger V =7.40 m/ s

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A: The weight of a yacht and its passengers is W=11.60 kN=11.60×103 N. The radius of the circular path…

Q: An automobile engine slows down from 3200 rpm to 1200 rpm in 2.0 s . A.Calculate its angular…

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Q: During the spin cycle of a washing machine, the clothes stick to the outer wall of the barrel as it…

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Q: Two cylinders are connected by a string that is wrapped around each cylinder. If the cylinder is…

A: a) Torque about the second mass, Now, net force for the second mass,

Q: A 0.57 kg steel block rotates on a steel table (μk = 0.6) while attached to a 2.6 m long massless…

A: Given data:  Mass of steel block, m=0.57 kg Length of rod, L=2.6 m Thrust force, FT=3.4 N Angle,…

Q: th 0.570 m radius tires travels at 43.0 m/s. At how many radians per second are the tires rotating?…

A: GivenRadius of tire, r=0.570 mvelocity , v=43 m/s

Q: 12. A 0.20 kg block on a 0.50-m-long string swings in a circle on a horizontal, frictionless table…

A: Given: The mass of the block is m=0.2 kg. The length of the block is r=0.5 m. The number of turns…

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Q: A roller-coaster car of mass 309 kg (including passengers) travels around a horizontal curve of…

A: Given Mass, m=309 kg Radius, r=35.2 m Speed, v=21.3 m/s

Q: A Ferris wheel on a California pier is 27 m high and rotates once every 32 seconds. When the wheel…

A: The given values are, d=h=27 mr=d2=27 m2=13.5 mω=1 rev32 s=2π rad32 s=0.19635 rad/st=75 s

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A: When a particle moves in the circle with a uniform speed then it experiences an acceleration towards…

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Q: A typical laboratory centrifuge rotates at 4000 rpm. Test tubes have to be placed into a centrifuge…

A: Given that;ω=4000 rpm=4000×2π60=418.9 rad/sr=10 cm=0.1 mh=1 mt=1 ms=0.001 s

Q: 5. A block m= 5kg sits on a horizontal surface with coefficient of friction u = 0.2 between the…

A: a. For mass m, T1-μmg=ma For the pulley, T2R-T1R=IαT2R-T1R=12mcR2aRT2-T1=mca2 For mass M, Mg-T2=Ma

Q: A propeller goes 1500 rpm to rest in 45 s. a. What is the acceleration? b. What is the angular…

A: Given data: Speed of propeller (N) = 1500 rpm Time (t) = 5 sec Need to determine the acceleration…

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.