(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 accelerate it from rest to a rotation rate of 1.00 revolution per 8.00 s? Assume it is a solid cylinder.

Q: 136. A circular disc of mass 3kg and radius 10cm is spinning about its axis with angular speed…

A: Angular speed = 2rad/s Mass of disk = m= 3 kg Radius r = 10 cm

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

A:

Q: A circulr disc of mass 100 kg and radius 1 m is mounted coaxially and made to rotate. Calculate the…

A:

Q: The earth is a sphere of radius mass M and radius R. If the radius of the earth is suddenly doubled…

A: Given : Rf = 2Ri

Q: cylindrical salami (mass 1.20 kg, radius 4.00 cm) is released from rest at the top of ah = 4.00 m…

A: we have givenm=1.2 kgr=4.00 cmHeight of top (h)=

Q: A force is applied to the rim of a disk that can rotate like a merry-go-round, so as to change its…

A:

Q: Suppose a 180 kg motorcycle has two wheels and is heading toward a hill at a speed of 30.0 m/s.…

A:

Q: Assuming an initial angle of 00 = what is the 15°, a wheel of mass M = 4 kg and radius R = 60 cm, i)…

A: Given,Initial angle, θ0 =15°Mass of the wheel, M = 4 kgRadius of the wheel, R = 60 cm =0.60 mi)…

Q: II. A ball with mass 1.00 kg slides down from a rump smoothly (pure rotating) then go p needed that…

A:

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: (2)Convert from radians to degrees - rad 12n rad 5 12n rad 3 rad 2π rad

A: To find: radian to degree conversion

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 thin rod of mass M and length L is pivoted on a frictionless hinge at one end, as rest…

A: Determine the moment of inertia of the given rod about hinge by using the parallel axis theorem.…

Q: A 10kg wheel of radius 0.5m is initially spinning at 3 revolutions per minute before coming to stop…

A: Given that,Mass , M=10kgAcceleration, R=0.5mInitially spinning at 3 revolutions per minuteWork done…

Q: A solid cylinder has rotational kinetic energy of 435 J, calculate its new KE, when (i) its…

A:

Q: 9) A wheel with radius 50.0 cm is rotating with 3500 rpm. It slows down to 50 rpm in 40 seconds. (a)…

A:

Q: Which rolls down an inclined plane faster, a hollow cylinder or a solid sphere? Both have the same…

A:

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: (d) Calculate the angular velocity of the of Earth in its orbit around the Sun. rad/s W rev = (e)…

A:

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

A:

Q: (III) An Atwood machine consists of two masses, ma = 65 kg and mg = 75 kg, connected by a massless…

A: The mass of block A,   The mass of block B,   The mass of the pulley,   The radius of the pulley,

Q: tia 10 kg m² Vigt is the required average power? g at 50 rad/s. It must be brought to stop in 10 s.…

A: Work done on a body is equal to the increase in the energy of the body, for work transfers energy to…

Q: A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a…

A:

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

A:

Q: Suppose a 165 kg motorcycle has two wheels and is heading toward a hill at a speed of 30.0 m/s.…

A:

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

A:

Q: A wheel of radius 4 m, mass 25 kg, and mo- 3 mr2 about the center of 4 ment of inertia - mass is…

A: Mass of wheel (m) = 25 kg Radius of wheel (r) = 4 m Moment of inertia of wheel = 34mr2Hanging mass…

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

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 solid sphere rolls down two different inclined planes of the same heights but different angles of…

A: (a) The total energy of the sphere at the top is

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

A:

Q: ratio of angular speed of minute hand and hour hand of a watch is. (a) 6:1 (b) 1:6 (c) 1:12 (d) 12:1

A: To find-ωminωhr=?Given-For minute hand.Periodic time=Tm=60 min…

Q: An amusement park ride (known variously as the Rotor, the Turkish Twist and the Graviton) consists…

A: Given-R=4 mμs=0.4The forces exerted on the rider, when the floor drops  away, are-(i) The normal…

Q: 16-146. A ride in an amusement park consists of a rotating arm AB that has an angular acceleration…

A: Step 1:Step 2:Step 3:Step 4:

Q: (I) The blades in a blender rotate at a rate of 6500 rpm. When the motor is turned off during…

A:

Q: A bicycle wheel of radius r = 1.5 m starts from rest and rolls 10 m without slipping in 30 sec.…

A:

Q: A circular disc of mass of 10 kg and radius 0.2 m is set into rotation about an axis passing through…

A: In this case we have to calculate the angular velocity ω the disc that will attain at end of 6 s…

Q: (II) A potter is shaping a bowl on a potter's wheel rotating at constant angular velocity of 1.6…

A: Friction force = 1.5 N initial angular velocity, wi=1.6 rev/s= 1.6×2π rads (a)Torque on the wheel…

Q: A tall, cylindrical chimney falls over when its base is ruptured. Treat the chimney as a thin rod of…

A: