Olympic ice skaters are able to spin at about 5 rev/s. (a) What is their angular velocity in radians per second? (b) What is the centripetal acceleration of the skater's nose if it is 0.120 m from the axis of rotation? (c) An exceptional skater named Dick Button was able to spin much faster in the 1950s than anyone since-at about 9 rev/s. What was the centripetal acceleration of the tip of his nose, assuming it is at 0.120 m radius? (d) Comment on the magnitudes of the accelerations found. It is reputed that Button ruptured small blood vessels during his spins.

Q: A CD rotates at 5600 revolutions per min. The disk has a radius of 15 cm. What is the centripetal…

A: ω=5600 rpm×2π rad1 rev×1 min60 s=586.43 rad/s

Q: An athlete swings a 3.40-kg ball horizontally on the end of a rope. The ball moves in a circle of…

A: Given that:m=3.40 kgr=0.600 mω=0.650 rev/s

Q: An athlete swings a 5.30-kg ball horizontally on the end of a rope. The ball moves in a circle of…

A: Mass of ball (m) = 5.30 kg radius of circle (r) = 0.950 m angular speed (ω) = 0.410 rev/sec

Q: It has been suggested that rotating cylinders about 12.5 mi long and 3.58 mi in diameter be placed…

A:

Q: An athlete swings a 6.90-kg ball horizontally on the end of a rope. The ball moves in a circle of…

A: Given: The mass of the ball is 6.9 kg. The radius of the circular path is 0.67 m. The angular speed…

Q: An athlete swings a 5.50-kg ball horizontally on the end of a rope. The ball moves in a circle of…

A:

Q: Suppose a piece of dust finds itself on a CD. If the spin rate of the CD is 360 rpm, and the piece…

A:

Q: A wind turbine is rotating counterclockwise at 0.78 rev/s and slows to a stop in 17 s. Its blades…

A: As per our guidelines, we are supposed to answer only first three subparts in case of multiple…

Q: An astronaut candidate is being tested in a centrifuge that has a radial acceleration of 4g. The…

A: The expression for radial acceleration is,

Q: A child rides a scooter in a circular path with a radius of 3.0 m. The tangential speed of the…

A: radius (R) = 3 m v= 3 msmass of child and scooter(m) = 45 kg

Q: An athlete swings a 6.00-kg ball horizontally on the end of a rope. The ball moves in a circle of…

A:

Q: An athlete swings a 4.10-kg ball horizontally on the end of a rope. The ball moves in a circle of…

A: Answer Given  Mass of the ball m = 4.10 kg Radius r = 0.710 m  Angular speed ω = 0.520 rev/s

Q: When a carpenter shuts off his circular saw, the 10.0-inch-diameter blade slows from 4385 rpm to…

A: Given:Diameter of the blade = 10 inchRadius of the blade = 5 inchAngular velocity = 4385 rpmTime…

Q: A figure skater can rotate at 5 rad/s, and their arms can reach out 0.7m.  What would be the…

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: A turntable of radius 60 cm undergoes constant acceleration from rest to 3.0 rev/s in 2.5 seconds.…

A:

Q: A 100 kg vehicle enters a flat circular turn of radius 5 m. It is initially traveling at 5 m/s…

A: Given data: The mass of vehicle is m=100 kg. The radius of circle is r=5 m. The initial speed is…

Q: It has been suggested that rotating cylinders about 18.5 mi long and 4.40 mi in diameter be placed…

A: AIM: To determine the angular speed of the cylinder such that, the centripetal acceleration is equal…

Q: It has been suggested that rotating cylinders about 17.5 mi long and 4.73 mi in diameter placed in…

A: AIM:To determine the angular speed of the cylinder such that, the centripetal acceleration is equal…

Q: It has been suggested that rotating cylinders about 10.5 mi long and 3.54 mi in diameter be placed…

A: When in space the centripetal force on the cylinder will be equal to the gravitational force on the…

Q: A father fashions a swing for his children out of a long rope that he fastens to the limb of a tall…

A: solution as

Q: A Google search revealed that the disc in a CD player spins at between 200 and 500 revolutions per…

A: Given:  initial frequency, frequency, f = 200 rpm = 3.33 rps  final frequency, f' = 448 rpm = 7.47…

Q: When you start your record player, a ladybug is sitting on the edge of the record, 15 cm from the…

A: The angular acceleration (α) of the record is given by, Here, ω denotes the angular velocity and t…

Q: Astronauts in the International Space Station must work out every day to counteract the effects of…

A:

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.