(II) A merry-go-round accelerates from rest to 0.68 rad/sin 34 s. Assuming the merry-go-round is a uniform disk ofradius 7.0 m and mass 31,000 kg, calculate the net torquerequired to accelerate it.

Q: (III) Suppose a 65-kg person stands at the edge of a 5.5-mdiameter merry-go-round turntable that is…

A: Given: Mass of the person = 65 Kg The diameter of the merry go round turntable = 5.5 m Moment of…

Q: 17) The moment of Inertia of a solid uniform sphere of mass m and radius R is given by the equation…

A:

Q: (c) Drive three equations for rotation with constant angular acceleration.

A:

Q: A flywheel at rest is to reach an angular velocity of 24 rad/s in 8 second with constant angular…

A: Initial angular speed=0 rad/s=ω0 Final angular speed=24 rad/s=ω time=8 sec=t To find- Angle of turn…

Q: (II) A merry-go-round has a mass of 1640 kg and a radius of 7.50 m. How much net work is required to…

A:

Q: A disk rotates about its central axis starting from rest and accelerates with constant angular…

A: According to question we need to find --- (a) Calculate the angular acceleration. (b) Calculate the…

Q: A dad pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from…

A:

Q: Part (b) Calculate the moment of inertia in kg m of the meter stick if the pivot point P is at the…

A: Write the moment of inertia of the meters stick about its centre. ICG=mL212…

Q: (II) Let us treat a helicopter rotor blade as a long thin rod, as shown in Fig. 8–49. (a) If each of…

A: Expression for moment of inertia of long thin road -  Total moment of inertia of three such blade -…

Q: Two equal and opposite forces each of magnitude 40N are applied to the rim of a wheel makes 12…

A: magnitude of forces are 40N . no. of revolutions 12.

Q: (II) A grinding wheel is a uniform cylinder with a radius of 8.50 cm and a mass of 0.380 kg.…

A: Given  radius of the cylinder= 8.50cm mass= 0.380 kg 1750 rpm in 5.00s 1500 rpm in 55..0 s

Q: A wheel starts from rest and reaches a rotational speed of 100 rev/min within 30 rev. Assuming a…

A: Angular acceleration is defined as the rate of change of angular velocity and is given by α = ΔωΔt…

Q: A figure skater is spinning and moves her arms in so that her rotational inertia is decreased by a…

A: As external torque is zero in this case,  Conservation of angular momentum can be applied that means…

Q: A wheel rotates with a constant angular acceleration of 5 rad/S". If the initial angular speed of…

A:

Q: A vehicle is slowing down at a rate of 2.5 m/s2. If the tires of radius 0.30 m have initial angular…

A: The problem is based upon circular motion. To solve this we have to use the equation of motion. The…

Q: (II) A dad pushes tangentially on a small hand-drivenmerry-go-round and is able to accelerate it…

A:

Q: (I) Estimate the moment of inertia of a bicycle wheel 67 cm in diameter. The rim and tire have a…

A: Moment of inertia gives us a combined factor of the mass of a rotating object and how that mass is…

Q: An electric motor accelerates uniformly from 550. revolutions per minute to 30¯00 revolu- tions…

A: Given data- initial angular velocity ωi=550 rev/minute=550×2π/60=57.6 rad/s final angular velocity…

Q: A solid uniform sphere and a thin-walled, hollow spherehave the same mass M and radius R. If they…

A: GIven: The mass of the solid uniform sphere and a thin-walled, hollow sphere is M. The radius of the…

Q: (I) A 52-kg person riding a bike puts all her weight on eachpedal when climbing a hill. The pedals…

A:

Q: Calculate the angular velocity of a 0.300 m radius car tire when the car travels at 15.0m/s (about…

A: The angular velocity is given by

Q: A wheel of mass 40 kg and radius of gyration 0.5 m comes to rest from a speed of 180 rpm in 3s.…

A: Given data- m=40 kgk=0.5 mt=3 secω1=?ω2=0

Q: Three particles of masses m1 ​= 2.4 ​kg, ​m2= 2.6 kg and m3​= 3.9kg are​ connected by rods of length…

A:

Q: (II) (a) What is the angular momentum of a figure skaterspinning at 3.0 rev/s with arms in close to…

A:

Q: (II) To get a flat, uniform cylindrical satellite spinning at the correct rate, engineers fire four…

A:

Q: A child exerts a tangential 53.4-N force on the rim of a diskshaped merry-go-round with a radius of…

A: The expression for torque is,

Q: A volleyball player spikes the ball. At the instant that she begins to extend her shoulder to bring…

A: Average angular acceleration is given by the formula α =ωf-ωi∆tωf=final angular velocityωi=final…

Q: (II) A cooling fan is turned off when it is running at 850 rev/min. It turns 1350 revolutions before…

A:

Q: is mentioned in the slide that the rod is released from rest as such, the acceleration in the normal…

A:

Q: The angle an airplane propeller makes with the horizontal as a function of time is given by theta =…

A: Angular velocity is given as ω=dθdt…

Q: b) On an old-fashioned rotating piano stool, a woman sits holding a pair of dumbbells at a distance…

A:

Q: (II) A centrifuge rotor rotating at 9200 rpm is shut off andis eventually brought uniformly to rest…

A:

Q: 15 rad/s in time t= 8s. The moment of inertia of the disk I= 6 kgm?. (a) Calculate the magnitude of…

A:

Q: 12–158. An airplane is flying in a straight line with a velocity of 200 mi/h and an acceleration of…

A:

Q: (II) Two masses, mA = 35.0 kg and mB = 38.0 kg, are connected by a rope that hangs over a pulley (as…

A:

Q: A turntable with a rotational inertia of 0.0120 kg-m' rotates freely at 2.00 rad/s. A circular disk…

A: Given dataThe initial moment of inertia of the turntable is Ii_t = 0.0120 kgm2The initial angular…

Q: A person pushes at a 0.5m wide door and makes its edge accelerate at 3m/s2. What is its angular…

A: given          r=0.5m       edge acceleration a=3m/s^2   we have to calculate angular acceleration α

Q: If the angular velocity in a Flying wheel increases regularly from (20) to (30) radial angle per…

A:

Q: 1) A car with tires of radius 32cmdrives on highway at 0.447m/s. what is the angular speed of the…

A: Given speed of the car v= 0.447m/s And radius of its tyres r=32cm Or in SI unit r=0.32m

Q: (II) A 0.72-m-diameter solid sphere can be rotated aboutan axis through its center by a torque of…

A: Angular acceleration is, α=2θt2=2160 rev15.0 s2=2160 rev2π rad1 rev15.0 s2=8.936 rad/s2

Q: Given: ASF. A disc with radius r rolls down the hill without slipping (starting from rest). At the…

A: Solution:Form conservation of energy we have:mgh = 12mv2 + 12Iω2⇒mgh = 12mv2 + 12MR22vR⇒mgh = 12mv2…

Q: (I) (a) What is the angular momentum of a 2.8-kg uniformcylindrical grinding wheel of radius 28 cm…

A: The mass of the wheel, m=2.8 kg   The radius of the wheel, r=28 cm=0.28 m   The angular speed,…