4. A uniform disk with a mask of 0.45 kg and a diameter of 0.25 m, accelerates from rest to a speed of 6.28 rad/s in 5.0 s. Find the magnitude of the (a) angular acceleration, and (b) applied torque.
Q: An old-style elevator is connected to a counterweight by a cable that passes over a rotating disk…
A: Angular acceleration and linear acceleration are related as a=αr Linear velocity and angular speed…
Q: An electric drill starts from rest and undergoes uniform angular acceleration for a period of 0.180…
A:
Q: A wheel has a radius of 0.1m and a moment of inertia of 4.00 kg-m2 starts from rest and accelerates…
A: Given data: Radius (r) = 0.1 m Moment of inertia (I) = 4.00 kg.m2 Initial angular velocity (ω0) =…
Q: 3. A bicycle wheel is simply described as a uniformly distributed mass of 1 kg at a radius of 0.5 m.…
A: Given:Force applied wheel radius Therefore, the torque applied to the wheel is calculated as:
Q: A thin spherical shell has a radius of 1.80 m. An applied torque of 860 N m gives the shell an…
A:
Q: A certain wheel has a rotational inertia of 7.5 kg.m2. As it turns through 2.2 revolutions, its…
A: From kinematic relation for angular motion
Q: The wheels , axle, and handles of a wheel-barrow weigh 117 N (W). What is the force F needed to hold…
A:
Q: 3. During a tennis serve, a racket is given an angular acceleration of magnitude 180 rad/s². At the…
A:
Q: 300 mm 500m The spool has a mass of 50 kg and a radius of gyration of k = 0.5 m. If the 12 kg weight…
A:
Q: 6. A wheel is rotating with an angular acceleration of a(t) = 2t +1 (rad/s²). What is the tangential…
A:
Q: A wheel starts from rest and rotates with constant angular acceleration to reach an angular speed of…
A:
Q: A wheel rotates with a constant angular acceleration of 3.45 rad/s2. Assume the angular speed of the…
A:
Q: 4. (a) All forces acting on the rigid rod have equal magnitude of 10N. If the monent of inertia of…
A: 4. (a) In this question, the direction of rotation of the rod will be in the direction of net torque…
Q: 6. A solid, uniform bowling ball (mass 5.5 kg and radius 15 cm) starts at rest at the top of an…
A: Potential energy at the top equals the sum of translational and rotational kinetic energy at the…
Q: A uniform disk with a mask of 0.45 kg and a diameter of 0.25 m, accelerates from rest to a speed of…
A: Given:m = 0.45 kg⌀ = 0.25 mΔω = 6.28 rad/sΔt = 5s
Q: A merry-go-round accelerates from rest to 0.63 rad/s in 33 s. Assuming the merry-go-round is a…
A:
Q: 6. A coin with a diameter 2.70 cm and mass of 27.0 g rolls up a 27.0° inclined plane. The coin…
A:
Q: You have a hollow thin walled cylinder of mass 1.50 kg and radius 0.300 m, which is subject to a…
A:
Q: A merry-go-round accelerates from rest to 0.63 rad/srad/s in 39 ss. Assuming the merry-go-round is a…
A: Given: Initial angular velocity = 0 rad/s. Final angular velocity (v) = 0.63 rad/s. Time taken to…
Q: A person is riding a bicycle, and its wheels have an angular velocity of 17.06 rad/s. Then, the…
A:
Q: A 2243 kg solid sphere with a radius of 2.4 m rolls without slipping down an incline of 0 = 26°. If…
A:
Q: A machine part rotates at an angular speed of 0.70 rad/s; its speed i the increased to 2.6 rad/s at…
A: We know that the third equation of angular motion is given as ω2=ω02+2αθ where ω is the final…
Q: A solid ball of radius 32.8 cm and mass 8.57 kg starts from rest and rolls without slipping down a…
A: Given, radius of solid ball , r = 32.8 cm mass , m = 8.57 kg Length , l = 9.35 m Inclination degree…
Q: 6. A 0.350 m radius solid sphere with a mass of 0.225 kg is initially at rest. It obtains an angular…
A:
Q: 3. A 2.5kg, 5m long rod has a 7kg point mass attached to it and is free to rotate about the other…
A: Given, Length of rod (L) = 0.5m Mass of rod (mR)= 2.5 kg Mass of point mass (m)= 7kg ωi= 22.5…
Q: A dentist's drill starts from rest. After 3.20 s of con- stant angular acceleration, it turns at a…
A: Given Data: The time period is: t=3.20 s The angular velocity at the start is: ω0=0 The speed at the…
Q: 2. A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.50 × 104…
A: According to question --- Given data--- Initial angular speed = 1.5 × 104 rad/sec. Final angular…
Q: Starting from rest, a disk rotates about its central axis with constant angular acceleration. In 5.0…
A: Given, total time, t= 5s total rotation, θ = 25 rad a) So, magnitude of angular acceleration will…
Q: A dentist's drill starts from rest. After 3.20 s of constant angu- lar acceleration, it turns at a…
A: Given: The time duration is 3.20 s. The angular speed is 2.51x104 rev/min.
Q: During the launch from a board, a diver's angular speed about her center of mass changes from zero…
A: Given data: ωi=0ωf=6.9 rad/sTimr (t) = 310 msI=12 kg.m2 Need to determine the magnitude of the…
Q: A flywheel, a solid disk with moment of inertia 2.5 kg-m2, spins on a central axis at 400 RPM. A…
A: Given: The moment of inertia of the disk is 2.5 kg·m2. The rotational speed is 400 RPM. The value of…
Q: 36. A uniform disk has a mass of 3.7 kg and a radius of 0.38 m. The disk is mounted on frictionless…
A:
Q: 54. A cylinder with rotational inertia 11=2.0kg m2 rotates clockwise about a vertical axis through…
A: Given: I1 = 2.0 kg.m2ω1 = +5.0 rad/s(clockwise)I2 = 1.0 kg.m2ω2 =- 8.0 rad/s(counterclockwise)
Q: A dentist’s drill starts from rest. After 3.20 s of constant angular acceleration, it turns at a…
A:
Q: A hollow cylinder, of inner radius 0.28m and outer radius 0.41m, is rotating around an axis through…
A:
Q: 1) The lower portion of a fire ladder (OA) rotates about the hinge at O at a rate of 0.05 rad/s. The…
A:
Q: A carousel is initially at rest. At t = 0 it is given an angular acceleration of 0.088 rad/s^2,…
A: We have to use kinetic relations for angular motions Angular acceleration α =ωt and linear velocity…
Q: A machine part rotates at an angular speed of 0.066 rad/s; its speed is then increased to 2.3 rad/s…
A: Given: The initial angular speed of machine part is 0.066 rad/s. The final angular speed of machine…
Q: Q18. Given the net torque of the system, find the angular acceleration for the 70N system of three…
A: Given data: The radius of rotation is r=12 m. The angular velocity is required at t=5 s. The number…
Q: 3. A solid cylinder is being rotated about its central diameter. It has a radius of 0.25 m, a length…
A: Given Radius = 0.25 m Length = 1.5 m Mass = 0.75 kg Angular velocity , w = 25 rad/sec.
Q: A dentist causes the bit of a high speed drill to accelerate from an angular speed of 1.76e4 rad/s…
A:
Q: A disk accelerates from rest to an angular velocity of 600 rad/s in 3.0 s. (a) What constant angular…
A:
Step by step
Solved in 2 steps with 1 images
