A circular disc is initially rotating at 7.7 rad/s and has a constant angular acceleration. After 5.3 s it has rotated hrough 5.9 rad. Its angular acceleration :(rad/s?)is 2.49- .a O 1.24- .b O 0.62-.c O 12.43- .d O

Q: A ballet dancer performs a triple pirouette (3 full rotations) in 2.75 seconds, what was his angular…

A: one rotation =3600 three rotations =3*3600                           =10800…

Q: Can you please answer question 3 and show all do the steps

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Q: During a very quick stop, a car decelerates at 7.89 m/s^2.  a. what is the angular acceleration (in…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: When Mary is 3.00 m from the center of a merry-go-round, her tangential speed is a constant 1.88…

A: Given data: Radius (r) = 3.00 m Tangential speed (v) = 1.88 m/s Required: Angular speed (ω) and…

Q: Express the angular speed of 40 degrees per second in (a) rev/s, (b) rpm, (c) rad/s.

A: (given) Angular speed = 40 °/s (a)                   1°/s = 0.00277777 rev/s Angular speed of 40 °/s…

Q: An object has a final angular velocity of 25 rad/s and sweeps through 80.0 raf with an angular…

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Q: c. With the wheel starting from rest, this torque is applied constantly. After three revolutions,…

A: c. The angular acceleration expression ωf2=ωi2+2α∆sωf2=0+2α∆s⇒α=ωf22∆s

Q: ??‍♀️

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Q: A disc, with a non-zero initial angular velocity, undergoes a constant angular acceleration for T…

A: using equation of motion w = wo + αtwhere w is the final velocity wo is the initial angular velocity…

Q: A dentist's drill starts from rest. After 3.20 s of constant angular acceleration it turns at a rate…

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Q: A wheel makes 69.169.1 rotations during 5.59 s.5.59 s. What is the average angular velocity ?avωav…

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Q: The disk has an angular acceleration a =8 rad.s2 and an angular velocity w =2rad.s1 at the instant…

A: Given:- The radius r= 0.5 m  The angular velocity =2 rad/sec The angular acceleration = 8 rad/s2…

Q: The angular speed of a rotating disk is given by the equation: @ = (2rad/s) + (3rad/s?)t What is the…

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Q: -0.01 rad/s2 2.0m oint Pis on the rim of a wheel of radius 2.0 m. At timet= 0, the wheel is at rest,…

A: radius = r = 2 m angular acceleration = α= 0.01 rad/s2 when it reaches the y- axis angular…

Q: An object is swung in a horizontal circle, starting at position zero (0 rad) and ends at 8 rad. If…

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Q: angular acceleration at t = 1.22 s. (e) Is its ang

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Q: Starting from rest, a disk rotates about its central axis with constant angular acceleration. In…

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Q: A merry-go-round rotates from rest with an angular acceleration of 1.28 rad/s2. How long does it…

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Q: During the spin-dry cycle of a washing machine, the motor slows from 93.0rad/s to 31.0rad/s while…

A: Given data:  Initial angular velocity (ωi) = 93.0 rad/s Final angular velocity (ωf) = 31.0 rad/s…

Q: With the aid of a string, a gyroscope is accelerated from rest to 30 rad/s in 0.41 s. (a) What is…

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Q: A rope wrapped around a 5-kg circular drum pulls with a tension of 400 N. If the radius of the drum…

A: Given data: Mass (m) = 5 kg Force (F) = 400 N Radius (r) = 20 cm = 0.20 m Angle between force and…

Q: The crankshaft in a race car goes from rest to 3000 rpmrpm in 3.5 ss. What is the angular…

A: Given: The initial angular speed is 0 rad/s. The final angular speed is 3000 rpm. The time interval…

Q: The equation between displacement 0 of a rotating body moving with constant angular acceleration a…

A: The right option is 4th.

Q: A CD originally spinning at 34.0 rad/s (325 rpm) slows down uniformly until it comes to a full stop…

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Q: ntist's drill starts from rest and undergoes uniform angular acceleration t turms at a rate 10…

A: The angular acceleration is the time rate of change of the angular velocity. Here, we calculate the…

Q: The angular position of a point on a rotating wheel is given by 0-4.55 3941+ 156, where Ois in…

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Q: A 12 cm disk in radius is originally rotating at wo = 17 rad/s. If it is subjected to a constant…

A: Angular velocity = W0 = 17 rad/s angular acceleration = α= 7 rad/s2 number of revolutions = n = 3…

Q: A bicyclist starting at rest produces a constant angular acceleration of 1.70rad / (s ^ 2) for…

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Q: A car rounds a curve with a translational speed of 11.0 m/s. If the radius of the curve is 5.00 m,…

A: Given v = 11 m/s Radius r = 5 m

Q: A figure skater performs a twisting jump. She rotates around her longitudinal axis 2 times in 0.65…

A: Given data:  Angular displacement (Δθ) = 2 rev Time (t) = 0.65 s Required: The average angular…

Q: A circular wheel goes from rest to full speed of 31 rev/min in 1/8 of a complete rotation.  1. At…

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Q: A giant wheel is rotating at a speed of 20 rad/s. It then slows down with a constant angular…

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Q: A shaft is turning at 65 rad/s at time t=0. Thereafter, its angular acceleration is given by α = -10…

A: a) The required angular speed is,

Q: .5 s to uniformly accelerate to its final angular speed @2= 750 rad/s

A: GivenInitial angular velocity, ω1=350 rad/sFinal angular velocity, ω2=750 rad/sTime t=5.5 s

Q: A centrifuge spins from rest with an angular acceleration of 226 rad/s2. What is the angular speed…

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Q: An object has an initial angular velocity of 5.0 rad/s and undergoes an angular acceleration of 15…

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Q: The angular position of a point on a rotating whel is given by 0-4.55 1 394r2 , 1.56, where Ois in…

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Q: A race car engine at a maximum rate of 15,000 rpm (Revolutions per minute). What is the angular…

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Q: During the spin-dry cycle of a washing machine, the motor slows from 98.0rad/s to 36.0rad/s while…

A:

Q: A wheel has a constant angular acceleration of 2.5 rad/s2. Starting from rest, it turns through 330…

A: Given(n): Angular acceleration, α=2.5 rad/s2 Initial angular velocity, ωi=0 Angular displacement,…

Q: The slotted link is pinned at O, and as a result of the constant angular velocity = 3 rad/s it…

A:

Q: A wheel has a constant angular acceleration of 6.0 rad/s?. Starting from rest, it turns through 290…

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Q: A dentist's drill starts from rest. After 3.50 s of constant angular acceleration it turns at a rate…

A:

Q: Started from rest, the two wheels of a mountain bike have both an angula acceleration of 4.0…

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Q: Starting from rest, a disk rotates about its central axis with constant angular acceleration. In…

A: θ = 33.4 rad t = 7 sec wo = 0 using equation of angular motion θ = wot + (1/2)(α)(t)2 33.4 = 0 +…

Q: A particle moves in a circle of radius 80 m with a constant speed of 30 m/s. (a) What is its angular…

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Q: A rectangular plate swings from arms of equal length as shown. What is the magnitude of the angular…

A: Angular velocity is rate of change of angular displacement of the particle. It is denoted by w. w =…

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.