How much energy is dissipated when a 2 kg grinding wheel of radius 0.1 m is brought to rest from an initial velocity of 300 rpm?

Q: A wheel has a thin 3.1 kg rim and four spokes each of mass 1.1 kg. Find the kinetic energy of the…

A: The mass of the rim is 3.1kg, and the mass of four spokes is 1.1kg

Q: A solid ball of mass 6 kg, rolls down a hill that is 9 meters high. What is the rotational KE at the…

A:

Q: A torque of 170 N.m does 4715 J of work on a rotating flywheel. If the flywheels initial kinetic…

A: Given : τ = 170 N.m W = 4715 J Ki = 1320 J

Q: A 646 g, 17.4 cm diameter cylinder rolls across a table at 2.00 m/s. What is the cylinder's kinetic…

A: Mass of the cylinder (M),

Q: A bowling ball of mass 7.28 kg and radius 10.5 cm rolls without slipping down a lane at 3.10 m/s .…

A:

Q: The puck in the figure below has a mass of 0.160 kg. Its original distance from the center of…

A:

Q: The turntable in a microwave oven has a moment of inertia of 0.038 kg⋅m2 and is rotating once every…

A: Given, moment of inertia =0.038 kg.m2time period T =5.0 secwe have to calculate the kinetic energy.

Q: A bowling ball of mass 7.27 kg and radius 11.0 cm rolls without slipping down a lane at 2.90 m/s.

A: Let us consider the bowling ball as a sphere. As it rolls without slipping then the total kinetic…

Q: A 6kg hoop 3m in diameter rolls down a plane inclined 40 degrees. At the bottom of the incline, what…

A:

Q: A hoop of radius 2 m weighs 100 kg. It rolls along a horizontal floor so that its centre of mass has…

A: Without the weights the meter stick will balance at 50 cm.

Q: A bowling ball of mass 7.24 kg and radius 10.7 cm rolls without slipping down a lane at 2.80…

A:

Q: A wheel with a weight of 391 N comes off a moving truck and rolls without slipping along a highway.…

A: We have a wheel of weight F=391 N which has a radius R=0.601 m and has an angular velocity w=25.1…

Q: A wheel had a radius of .51m and a inter ya of 14.8kg•m^2 rotating around 56 rev/min. The wheel…

A: radius r=  .51m  inertia= 14.8kg•m^2 angular velocity, w= 56 revminute=2π×5660=5.86 rad/s time taken…

Q: 3.20P) Two disks are mounted on the same axle (no friction between disks and axle). Disk 1 of…

A: Given,

Q: Consider a point on a bicycle wheel as the wheel makes exactly four complete revolutions about a…

A: Given : A point on a bicycle wheel completes exactly four revolutions around a fixed axis. To find :…

Q: A machine has a rod-shaped steel blade that rotates about its center.  The mass of the blade is 0.50…

A:

Q: A 6kg hoop 3m in diameter rolls down a plane inclined 40 degrees. At the bottom of the incline, what…

A: Given: The mass of the hoop m = 6 kg The radius of the hoop r = 1.5 m The horizontal distance  d = 3…

Q: The time required for one complete revolution is: a) torque b) frequency c) period d) rotational…

A: For any rotating object the time required for one complete revolution is called Time period.

Q: 5. vheel of mass 2.5 kg shown in the figure? What is the kinetic energy of the smoothly rolling Ocom…

A:

Q: An electric fan spinning with an angular speed of 12 rad/srad/s has a kinetic energy of 4.1 J .

A: Given: angular speed ω =12 rad/s kinetic energy K =4.1 J

Q: A wheel as shown below, has a thin 3.0 kg rim and four spokes, each of mass 1.2 kg. The aiameter of…

A: Kinetic energy of the wheel is sum of rotational and translational kinetic energies…

Q: a flat circular frisbee of mass 2.26 and radius .669 meters is thrown in such a way that the speed…

A: Given: mass m = 2.26 kg radius R = 0.669 m velocity v = 0.838 m/s frequency   ω=21.7 rot/min =…

Q: The top edge of a rod of mass 2.80 kg is pivoted to a point on the ceiling. The rod is free to…

A: in this question we determine angular velocity and angular displacement.

Q: A solid ball of mass 5 kg, rolls down a hill that is 6 meters high. What is the rotational KE at…

A:

Q: The angular velocity of a pulley of mass m and radius R changes with time w(t) = 60e-0.02t (rad/s).…

A: Given: The angular velocity isωt=60e-0.02t rads The expression fir angle rotated is:…

Q: A 29.3 kg wheel, essentially a thin hoop with radius 1.93 m, is rotating at 204 rev/min. It must be…

A: According to the work-energy theorem, the work that must be done is equal to the change in…

Q: The puck in the figure below has a mass of 0.186 kg. Its original distance from the center of…

A: Given: mass of puck, m=0.186 kg Initial radius, ri = 40 cm Initial speed of rotation, v=85 cm/s…

Q: A .20 kg mass is sitting on a frictionless 1 m long incline and is attached via cable to the inner…

A:

Q: The puck in the figure below has a mass of 0.132 kg. Its original distance from the center of…

A:

Q: When the kinetic energy due to rotation is zero?

A: The kinetic energy due to rotation is given by, K=12Iω2 Here, I is the moment of inertia of the…

Q: If the flywheel has a density (mass per unit volume) of 8600 kg/m, what thickness must it have to…

A: The disc starts rotating from rest with a uniform angular acceleration. Using newtons rotational…

Q: The puck in the figure below has a mass of 0.260 kg. Its original distance from the center of…

A:

Q: A 40.0-kg solid cylinder is rolling across a horizontal surface at a speed of 6.0 m/s. How much work…

A:

Q: A solid sphere of mass 0.05 kg and diameter 2 × 10-2 m rolls without slipping with a uniform…

A:

Q: A hollow sphere rolls without slipping down a ramp that is 3.5 m long. the ramp is inclined at an…

A: Given information: Here, l is the length of the ramp and θ is the ramp’s inclination angle.

Q: A bowling ball of mass 7.20 kgkg and radius 10.7 cmcm rolls without slipping down a lane at 2.90…

A:

Q: A thin 105 g disk with a diameter of 7.00 cm rotates about an axis through its center with 0.615 J…

A: Given : Mass of a disk (m) = 105 g = 0.105 kg Diameter (d) = 7 cm = 0.07 m Kinetic energy (K) =…

Q: Starting from rest, a hollow ball rolls completely down a hill of height 3.5 meters. At the bottom…

A: H = 3.5 m w = 20.2 rad/secUsing conservation of energy initial potential energy = final…

Q: A 140 kg hoop rolls along a horizontal floor so that its center of mass has a speed of 0.200 m/s.…

A: The expression for the work done to stop the hoop is,

Q: An automobile has a total mass of 1600 kg. It accelerates from rest to 50 km/h in 25 s. Assume each…

A:

Q: A rotating wheel has a kinetic energy of 135 J when its rotating at an angular speed of 30 rad/s.…

A: In this question, we are dealing with the rotational motion. Given: Kinetic energy, K=135 J Angular…

Q: A bicycle is turned upside down while its owner repairs a flat tire on the rear wheel. Afriend spins…

A: