16-57. At the instant shown the boomerang has an angular velocity w = 4 rad/s, and its mass center G has a velocity vG = 6 in./s. Determine the velocity of point B at this instant. vG = 6 in. /s 30° w = 4 rad/s 1.5 in.45 5 in.
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- QUESTION 7 What is the total kinetic energy of a bowling ball of mass, m, and radius, R, that is rolling in a straight line with a center-of-mass velocity, vcm: without slipping on a level bowling lane? Assume that the bowling ball is a uniform, solid sphere. (Neglect rolling friction.) a. 7m| v ст 10 ("m)² b. m V ст 2 c. Sm(v cm)² ст 3m v ст 4 е. 2m v ст 3 2. 6help pls asap not in scientific notation plsQuestion 16 A ball is rolling to the right. Its center of mass is moving a speed of v. D Relative to the center of the ball, which location has the largest linear speed? Point A at the back of the ball. Point B at the top of the ball. Point C at the front of the ball. Point D at the bottom of the ball. All points have the same speed relative to the center of the ball.
- 73 Figure 13-53 is a graph of the kinetic energy K of an asteroid versus its distance r from Earth's center, as the asteroid falls di- rectly in toward that center. (a) What is the (approximate) mass of the asteroid? (b) What is its speed at r = 1.945 x 10' m? 1.75 1.85 1.95 r(107 m)6. Three particles are located in the x-y plane as follows: 3 kg at (2 m, 5 m), 4 kg at (-1 m, -1 m) and 2 kg at (3 m, -2 m). Calculate a) their center of mass, and b) their total moment of inertia about the origin.Determine the moment of the 275-lb force about point A and about point O. 41" 29" 26° F = 275 lb Answers: B x MA= (i k) lb-in. Mo= (i k) lb-in.
- #35) A disk of mass m = 75.0 g and radius r = 4.20 cm glides across an air table at a speed v = 1.5 m/s. It makes a glancing collision with a hoop of radius R = 5.80 cm and mass M = 130 g (initially at rest) such that their rims just touch. Because their rims are coated with instant-acting glue, the two objects stick together and rotate after the collision. a) What is the angular momentum of the system relative to the center of mass? b) What is the angular speed about the center of mass?7) A non-rotating uniform hoop of radius kb and mass m is dropped onto a rotating uniform disk of radius b and mass 3m. If the disk is initially rotating with angular velocity @,, what is w, after friction makes two objects rotate with the same angular velocity? Assume the central axes of both objects always lie exactly along the same axis of rotation. XA) @, =0, B) @, = 0, C) @, =0, General c.o.m. Moments MR? I hoop of mass M, radius R %3D Dinsction Idisk of =MR force mass M radius R E) Зт, о,
- A 5.0 kg block travels around a 0.60 m radius circle with an angular velocity of 15 rad/s. Its angular momentum about the center of the circle is... Select one: a. 24 kg. m/s b. 27 kg. m'/s c. 30 kg. m/s Previous page mula Sheet, CA-2, T-3, AY Jump to... 20-21 Activate Win L Go to Settings to2. A thin square plate of mass m rotates on a smooth surface with an angular velocity of æn about its mass center. The hook then strikes the peg at P and the plate starts to rotate about point P with no rebound. What is the plate's angular velocity after impact, and the speed vg of the mass center of the plate?Problem 2: A ball with mass mg at the end of a massless cord is swinging in a circle of radius R-1.09 m with and angular velocity e- Il rad's. Soler, Rachacl rsolertcnm.edu R Ctheespertta.com experta com - tracking id: IN7CC-FA-47-SSD6-37227, In sccondance with Expert TAY Terme Service cepying this information to any solutions tharing websine is strictly forbidden Doing sit may restult in lermination of your Expert TA Account. (art (a) Write an expression for the velocity v of the ball. Grade Summary Deductions Potential 100% 6. 4. 6. Submissions Attempts remaining: (4 per attempt) detailed view P. R Hint I give vpt Part (b) Calculate the velocity of the ball, v in m's. Part (e) In order to travel in a circle, the direction the balls path mus stantly be changing (curving inward). This constant change in direction towards the center of the circle is a center pointing acceleration called ceiltripetal acceleration ae. Write an expression for the centripetal acceleration ae of the ball, in…