The net work done to accelerate a propeller from 0 to 30 rad/s is 6000J. What is the moment of inertia of the propeller in kg m2 ? a. 26 b. 20 c. 13 d. 30 e. 6.5

Q: Force F = -4.8 Ni+ 2.8 Nj acts on a small rock with a position vector r = 6.8 m i+ 2.2 mj relative…

A: Given:F→=-4.8i→+2.8j→r→=6.8i→+2.2j→To find:Torque T=??

Q: 3. A bucket at for collecting water from a well is suspended from a light rope that is wrapped…

A:

Q: An object ( M-6 kg. R-09 m) has moment of inertia about its cm equal 2.5 kg m² rolls down an incline…

A: Mass of object M = 6 Kg The radius of the object R = 0.9m The moment of inertia of the object is I =…

Q: Calculate the total kinetic energy of a solid disk with a mass of 1.00 kg if it rolls along a…

A: mass of ball= 1 Kg speed= 6 m/s

Q: At time t = 0 s, a wheel has an angular displacement of zero radians and an angular velocity of 21…

A: According to Work energy theorem, Change in kinetic energy is equal to work done. W=∆K…

Q: A hoop is rolling without slipping along a horizontal surface with a speed of 3.034 m/s when it…

A:

Q: Three 0.0200 kg particles that have been glued to a rod of length L = 9.00 cm and negligible mass.…

A: Option D) 3.24 × 10-4

Q: A ring and a disk have the same mass and radius. Which has the greater moment of inertia?   a. Not…

A: Moment of inertia of ring = MR2  Moment of inertia of disc = MR2/2

Q: A turntable with a moment of inertia of 0.028 kg∗m^2 rotates freely at 3.3 rad/s. A circular disk of…

A: Given data The initial moment of inertia of the turntable is Ii_t = 0.028 kgm2 The initial angular…

Q: A diver curls up on diving to do flips, then straightens as she enters the water.  Which of these is…

A: The product of the body's angular velocity and its moment of inertia is the angular momentum of the…

Q: 31 32

A: 31) the expression for the balancing moment with respect to the point where normal force is acting.

Q: 2. A hollow cylinder (hoop), a solid cylinder (disk), and a solid sphere, each of mass M and radius…

A: Given, A hollow cylinder, solid cylinder and solid sphere of mass M and Radius R and they are roll…

Q: n electric motor turns at 1200 RPM while delivering a torque of 20 in-lb. a. What is the angular…

A: Given: The speed of the motor is 1200 rpm. The torque of the motor is 20 in-lb.

Q: A typical helicopter with four blades rotates at 290 rpm and has a kinetic energy of 5.85 x 105 J.…

A: Solution: The angular velocity of the blade is given to be 290 rpm. Convert this velocity into the…

Q: A wheel is rolling along the ground with a translational velocity of 2.0m/s. If the wheel has a…

A:

Q: A thick cylinder of inner radius 10 cm and outer radius 50 cm rolls at 4 m/s without slipping. If…

A: Given that:- The cylinder's inner radius is: r = 10 cm = 0.1 m The outer radius of the cylinder is:…

Q: You are attending a county fair with your friend from your physics class. While walking around the…

A:

Q: Q10: A disc whose moment of inertia is worth 1.27 kg.m² rotates with an angular velocity of 824 rpm…

A: Solution: The moment of inertia of the two discs is 1.27 kgm2 and 4.85 kg m2 respectively. The lower…

Q: Question 3 A 1.8 kg solid cylinder (radius = 0.15 m , length = 0.70 m ) is released from rest at the…

A:

Q: In an Atwood's machine, one block has a mass of 304.0 g, and the other mass of 454.0 g. The pulley,…

A:

Q: 0 R circular hoop of radius 25.0 cm and mass 75.0 g is rotates at 250 rpm about its radial axis as…

A: The radius of the hoop Mass of the hoop Angular Speed

Q: Nine idenlical point masses are connected by very stiff wires as shown. You may neglect the mass of…

A: Using conversation of energy for all the masses.

Q: A disk of radius r= 51.9 cm and rotational inertia, about the disk axis on which it is fixed, is 3…

A:

Q: Suppose that the four masses below are located at the vertices of a square. Calculate the moment of…

A: Moment of inertia I = mr2

Q: A conical gyroscope moves on a frictionless tabletop while spinning around its own axis. What should…

A:

Q: A seasaw is in the rotational equilibrium. Net torque on the seasaw is measured to be   A. 9.8 Nm…

A: A seesaw is in rotational equilibrium.Net torque on the seesaw is measured to be   A. 9.8 Nm…

Q: You drop a disk (Icm = 1/2MR2) from rest. The disk rotates as it unwinds from a fixed vertical…

A:

Q: A typical helicopter with four blades rotates at 290 rpm and has a kinetic energy of 5.85 x 105 J.…

A: Given that-Kinetic energy, K=5.85×105 JAngular speed, ω=290 rpmwhere, ω=290×2π60 rad/sec=30.35…

Q: The angular acceleration of a spinning toy is a = 5t3 – 4t. If at t = 0, the angular %3D velocity is…

A: Given: The equation of angular acceleration is α=5t3-4t. The angular velocity at t=0 is 5 rad/s.

Q: A 4 kg ball with a 0.5 m radius rolls at a constant 4 rad/s. The rotational inertia of the ball is…

A: Given that,Mass, m=4 kgradius, r=0.5 mAngular velocity, ω=4 rad/sRotational Inertia,I=0.5 mr2We know…

Q: A solid disk/pulley of mass M-20.0 kg is attached to a block of mass m= 10.0 kg, which is released…

A: Given that: M=20 kgm=10 kgh=500 m

Q: The total kinetic energy of a baseball thrown with a spinning motion is a function of: Choose A. its…

A: Given: The baseball is thrown with a spinning motion.   Asked: Total kinetic is function of which…

Q: If the moment of inertia increases, the angular velocity. O A. Increases. B. Decreases. OC. Keep…

A:

Q: 1) Choose the three "bridge" equations between translational quantities and rotational quantities…

A: Let vt be the velocity of translational motion, alpha be the angular acceleration, w be the angular…

Q: 4. Determine the moment of force F about point O. F = 500i - 400j + 600k. Express the result as a…

A:

Q: A loop has a rotational inertia of 0.14 kg m when spinning about its central axis. It takes 1.5 s to…

A:

Q: 8. A 3 kg uniform disk has a radius of 2 m. An external torque of 10 N-m is applied to the outside…

A: Given: The mass of the disk is 3 kg. The radius of the disk is 2 m. The torque is 10 N-m. The time…

Q: wcred/sec) 183-3 25 128-7 124.1 119.4 75 14.8 125 Ho.2 +50 105.8. 175 lo0.9 200 96-3 260 87-04 243 8…

A: The torque is given by  τ=IαI=moment of inertiaα=angular acceleration