A small coin is placed on a flat, horizontal turntable. The turntable rotates at a constant rate of 45 rpm: It is observed to make 3 rotations in 4.0 s. When viewed from above, the turntable rotates counterclockwise. (a) A coin rides without slipping at a distance of 5.0 cm from the center of the turntable. What is the speed of the coin? (b) What is the acceleration (magnitude and direction) of the coin in part (a)? (c) Draw a free-body diagram of the coin. Label all of the forces in your diagram. (d) The coin has a mass of 2.5g. What is the frictional force acting on the coin in part (a)? (e) Over the course of several experiments, you observe that the coin will slide off if it is more than 10 cm from the center of the turntable, but it will ride along without slipping if it is closer than this. What is the coefficient of static friction between the coin and the turntable?

Q: The centripetal force of a rotating object in a circular path of a diameter of 60 cm and a mass of…

A:

Q: (flywheel rotated about its center), The tangential acceleration at of point A is calculated to be…

A: Solution:-

Q: A certain amusement park ride consists of a large rotating cylinder of radius R = 3.15 m. As the…

A:

Q: Starting from a standstill, a windmill-style softball pitcher executed a pitch in 0.6 s. If her…

A:

Q: A flywheel slows from 600 to 400 rev/min while rotating through 40 revolutions. a. The angular…

A:

Q: From information on the endsheets of this book, compute, for a point located on the surface of the…

A: Radius of earth at equator R = 6370 km = 6.37 x 106 m Period of rotation T = 24 hours

Q: A stone with a mass of 0.5 kg is tied to a string 1.2 m long and is whirled in a vertical circle. If…

A: It is given that m=0.5 kgr=1.2 mT=20 N

Q: In a popular amusement park ride, a rotating cylinder of radius R = 2.10 m is set in rotation at an…

A: Given information: The radius of the rotating cylinder, R=2.10 m The angular speed of the rotating…

Q: A point on a rotating turntable 20.0 cm from the center speeds up at a constant rate from rest to a…

A: The relation between the angular velocity and the linear velocity is given by, Here, r represents…

Q: A point on a rotating turntable 17.5 cm from the center accelerates from rest to a final speed of…

A: The tangential acceleration is given by,

Q: A coin is placed on a platform that makes 3 turns in 3.14s. Since money can stand 5cm away from the…

A:

Q: If you are driving at a German motorway at 262 km/h, what radius of curvature (in m) of a curve is…

A:

Q: The rotational effect of a force on a body about an axis of rotation is described in terms of: A)…

A: The rotational effect of a force on a body about an axis of rotation is described in terms of Moment…

Q: What is the inertia of a bowling ball (mass = 0.5 kg) of radius 15 cm rotating at an angular speed…

A: in this question we have to find inertia so we don't considered speed in equation.

Q: When you stand on the observation deck of the Empire StateBuilding in New York, is your linear speed…

A: Linear speed is given by,

Q: Sir Jeo is seating 2 m from the center of a carousel that is initially at rest. At an initial t= 0,…

A:

Q: A ladybug sits at the outer edge of a merry- go-round, and a gentleman bug sits halfway between her…

A: Given- Let take the radius of merry go round to be "r", Let take time "T" is taken by ladybug to…

Q: A tire with a radius of 0.5 m rotates at a constant speed of 200 rpm. Find the velocity of a small…

A: Given, the radius of a tire r =0.5 mrotating with speed of 200 rpm i.e. T =200 revolutions per min…

Q: You are to design a rotating cylindrical axle to lift 7.7-N buckets of cement from the ground to a…

A: Given data: The weight of the bucket is W=7.7 N. The height of rooftop is h=3.8 m. The acceleration…

Q: Consider a point on a bicycle wheel as the wheel turns about a fixed axis, neither speeding up nor…

A: Given that a point on a bicycle wheel as the wheel turns about a fixed axis, neither speeding up nor…

Q: An old-style elevator is connected to a counterweight by a cable that passes over a rotating disk…

A: Given:Diameter of rotating disk ,d = 3.7 m Height, H = 5 m velocity, v = 0.5 m/s   Solution: a)…

Q: A maintenance man is twirling a set of keys on the end of a lanyard. If the keys have a centripetal…

A: Centripetal acceleration is given by ACP =V2/R Here, ACP = centripetal acceleration = 145 m/s2. V =…

Q: When a rigid body rotates about a fixed axis, all the points in the body have the same Lütfen birini…

A: when a rigid body rotates about a fixed axis all the points in the body have the same: E. Tangential…

Q: A propeller blade at rest starts to rotate from t = 0 s to t = 1.5 s with a tangential acceleration…

A: To determine,Total acceleration(a) of the tip of the blade.given,tangential acceleration of the tip…

Q: Consider the system of particles that are connected by rigid rods of negligible mass. If the system…

A: We have four masses m1=8 kg, m2=3 kg (2 masses) and m3=11 kg and distances separating them a=7 m,…

Q: A certain amusement park ride consists of a large rotating cylinder of radius R = 3.15 m. As the…

A: Solution: The normal force will be equal to the centrifugal force to hold the rider in place. Write…

Q: A skater has a moment of inertia of 3 kg.m2 (kilogram, meter squared) when her arms are outstretched…

A:

Q: A cat dozes on a stationary merry-go-round, at a radius of 4.9 m from the center of the ride. Then…

A: Radius,(r)=4.9 m ------(1) [Given] Time of rotation,(T)=6.8 sec ------(2) [Given] Acceleration due…

Q: A 1.80 kg toy race car is slowing down while travelling around a circular horizontal track. If the…

A: Given values:Mass of the oy car, m = 1.80 kgRadius of the track, R = Diameter / 2 = 1.51/2 =0.755…

Q: A regulation basketball has a 44cm diameter and may be approximated as a thin spherical shell .how…

A:

Q: a stone tied to the end of a string 50cm long is whirled in a horizontal circle with constant speed…

A:

Q: Consider that the car is making a flat circular curve with radius R = 230 m. Knowing that the…

A:

Q: You are at a playground with a merry-go-round, which is initially sitting still.  You push on it,…

A:

Q: A good baseball pitcher can throw a baseball toward homeplate at 85 mi/h with a spin of 1800…

A:

Q: The cutting cord on a gas-powered weed cutter is 0.16 m in length. If the motor rotates at the rate…

A:

Q: In the figure, two blocks, of mass m = 257 g and m2 = 337 g, are connected by a massless cord…

A:

Q: How fast (in rpm) must a centrifuge rotate if a particle 8.50 cm from the axis of rotation is to…

A: Given:Radius of rotation, r = 8.5 cm = 0.085mAcceleration, a = 120000g m/s2

Q: If an airplane propeller rotates at 2000 rev/min while the airplane flies at a speed of 480 km/h…

A:

Q: In which of the following situations is the angular acceleration equal to zero? Mark only one. O A…

A:

Q: A 2.60-kg hoop 1.80 m in diameter is rolling to the right without slipping on a horizontal floor at…

A: Case 1 : Viewed by person at rest.Since the loop is rolling without slipping the velocity vector can…

Q: If the man pulls the strap with constant acceleration during a short time interval At, calculate the…

A:

Q: Suppose you have three separate wheels, each with the same total mass and radius. Which one has the…

A: Given Mass and radius of three separate wheel are equal These wheels are rotated about an axis…

Q: A disk with m1 = 2 kg is spinning in a circle of radius 1.2 m on a frictionless table. The rope…

A: Given data: The mass of the disk is m1=2 kg. The radius of the circle is r=1.2 m. The mass of the…

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.