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

A hoop rolls down a 4.75 m high hill without slipping. d = 4.75 m What is the final speed of the hoop, in meters per second? v =

3 1. A uniform solid sphere rolls without slipping down a 28° inclined plane. What is the acceleration of the sphere's center of mass? The moment of inertia of a uniform solid sphere about an axis that passes through its center = mr². The moment of inertia of a uniform solid sphere about an axis that is tangent to its surface = 7/5mr². m/s² E D C 4 22 R F % 5 V T G tv B MacBook Air 22 Y H 7 5 N 00 8 ZA 3 ( 9 K MOSISO O O V P command DUI 04 M option

5. A wheel is rolling along the ground with a translational velocity of 2.0m/s. If the wheel has a mass of 1.0 kg, a radius of 0.50m and a moment of inertia of 0.15 kg m2, what is its total kinetic energy? A) 2.0 J В) 3.2 J С) 2.3 J D) 2.6 J E) 1.2 J

Moment of inertia is: O A. The point at which all forces appear to act. B. The rotational equivalent of mass. OC. The time at which the mechanical energy of rotation is minimum. O D. The time at which the kinetic energy is minimum.

A point object with a mass of 150 g can move around a circular track that has a radius of 25 cm. What is the moment of inertia of the object around the center of the track? a. 0.00017 kilogram. meter squared b. 0.00094 kilogram. meter squared c. 0.00038 kilogram. meter squared d. 0.00057 kilogram. meter squared

9. Situational Question The rotation of a pulley is defined by the relation a=2t where a is in rad/s^2 and t is in seconds. When t=0, w=4 rad/s and = 0. Compute the value of wat t=5sec. a. 8 rad/s b. 25 rad/s c. 4 rad/s d. 29 rad/s Compute the value of e at t=5sec. a. 11 rad b. 62 rad c. 52 rad d. 31 rad A boy kicks a 0.15kg ball such that it leaves the ground at an angle of 45 degrees with the vertical and strikes the ground at the same elevation at a distance of 15m away. Determine the impulse on his foot on the ball at A. a. 1.749 kg-m/s b. 1.280 kg-m/s c. 1.947 kg-m/s d. 1.820 kg-m/s 9i. 9ii. 9iii.

Suppose a disk with constant angular velocity has rotational kinetic energy 1280 J. If the moment of inertia of the disk is 35 kg-m?, then what is its angular velocity? 8.552 rad/s 9.066 rad/s С. 7.303 rad/s 10.07 rad/s 10.40 rad/s А. D. В. E. 10.14 rad/s F.

A tennis player swings a standard tennis racket that is 27 inches long at an angular velocity of 20 rad/s. If the tennis player changes to a junior tennis racket that is 23 inches long and swings with an angular velocity of 20 rad/s, what happens to the linear velocity of the tennis racket? A. Linear velocity decreases B. Linear velocity remains the same C. Need more information

A turntable plays a vinyl with a mass of 0.186 kg and with a diameter of 0.089 meters. The vinyl rotates about an axis through its center with 0.698 J of kinetic energy. What is the speed (in m/s) of a point on the rim? The moment of inertia of the vinyl is I = (1/2)MR2