18–30. Motor M exerts a constant force of P = 750 N on %3D the rope. If the 100-kg post is at rest when determine the angular velocity of the post at the instant 0 = 60°. Neglect the mass of the pulley and its size, and consider the post as a slender rod. 0°, М Р3750N A 4 m 3 m В Prob. 18–30

18–30. Motor M exerts a constant force of P = 750 N on %3D the rope. If the 100-kg post is at rest when determine the angular velocity of the post at the instant 0 = 60°. Neglect the mass of the pulley and its size, and consider the post as a slender rod. 0°, М Р3750N A 4 m 3 m В Prob. 18–30

Name: 18–30. Motor M exerts a constant force of P = 750 N onthe rope. If th
Uploaded: 2024-03-20T06:56:55.000Z
Channel: Bartleby
Description: 18–30. Motor M exerts a constant force of P = 750 N onthe rope. If the 100-kg post is at rest when 0determine the angular velocity of the post at the instant0 = 60°. Neglect the mass of the pulley and its size, andconsider the post as a slender rod.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

19–14. The rod of length L and mass m lies on a smooth horizontal surface and is subjected to a force P at its end A as shown. Determine the location d of the point about which the rod begins to turn, i.e, the point that has zero velocity. L- Ed -
Example: 18-63. The uniform 80-lb garage door is guided at its ends on the track. If it is released from rest at 0 = 0º, determine the door's angular velocity at the instant = 30°. The spring is originally stretched 1 ft when the door is held open, 0 = 0°. Assume the door can be treated as a thin plate, and there is a spring and pulley system on each of the two sides of the door. Solution: 8 ft A 8 ft B k = 9 lb/ft
18–17. The center O of the thin ring of mass m is given an angular velocity of wg. If the ring rolls without slipping, determine its angular velocity after it has traveled a distance of s down the plane. Neglect its thickness. Wo S Prob. 18–17
16-29. A stamp S, located on the revolving drum, is used to label canisters. If the canisters are centered 200 mm apart on the conveyor, determine the radius rĄ of the driving wheel A and the radius rg of the conveyor belt drum so that for each revolution of the stamp it marks the top of a canister. How many canisters are marked per minute if the drum at B is rotating at wg = 0.2 rad/s? Note that the driving belt is twisted as it passes between the wheels. Тв 200 mm B. Тв wg = 0.2 rad/s
19–33. The 80-kg man is holding two dumbbells while standing on a turntable of negligible mass, which turns freely about a vertical axis. When his arms are fully extended, the turntable is rotating with an angular velocity of 0.5 rev/s. Determine the angular velocity of the man when he retracts his arms to the position shown. When his arms are fully extended, approximate each arm as a uniform 6-kg rod having a length of 650 mm, and his body as a 68-kg solid cylinder of 400-mm diameter. With his arms in the retracted position, assume the man is an 80-kg solid cylinder of 450-mm diameter. Each dumbbell consists of two 5-kg spheres of negligible size. -0.20 m 0.65 m 0.3 m H0.3 m Prob. 19–33
The shown spool has a mass of 450 kg and aradius of gyration Gk=1.2 m. It rests on thesurface of conveyer belt for which the coefficient offriction m= 0.5. If the conveyer acceleratesat2 1.2m / S and the spools rolls without slipping,determine the tension in the wire and the angularacceleration of the spool
At the instant shown, the spring is un-deformed. Determine the change in potential energy if the 20 kg disk (with radius of gyration kG = 0.5 m) rolls 2 revolutions without slipping. k= 200 N/m 3 m/s datum 0.3 m M = 2 Nm 30° O 1791 J O -1791 J O 1051 J O 1421 J O E) None of the above
The pavement compactor is traveling down the incline at VG = 5 ft/s when the motor is disengaged. The body of the compactor, excluding the rollers, has a weight of 8000 lb and a center of gravity at G. Each of the two rear rollers weighs 400 lb and has a radius of gyration of KA = 3.3 ft. The front roller has a weight of 800 lb and a radius of gyration of kg = 1.8 ft. The rollers do not slip as they rotate. (Figure 1) Figure 3.8 ft 5 ft A GT 10 ft 1 of 1 30 730 ▼ Part A Determine the angular velocity of the roller B when the compactor has traveled 16 ft down the plane. Express your answer in radians per second to three significant figures. WB = Submit IVE ΑΣΦ | Η Provide Feedback Request Answer P Pearson vec ? rad/s Next >
18–37. The spool has a mass of 20 kg and a radius of gyration of 200 mm ko = 160 mm. If the 15-kg block A is released from rest, determine the velocity of the block when it descends 600 mm. A
The uniform 80 kg slender rod is at rest in the position shown when P = 450 N is applied. Determine the value of angular velocity, w2 the rod if L1 = 5.5 m and L2 = 6.5 m. A L L2 L1 B
The 21-kg uniform thin hollow square plate is pinned at point O, and its side L = 0.5 m. If it is subjected to the constant moment M = 78 N•m and is released from rest from the position as shown, determine its angular velocity w (in rad/s) when it has rotated 45°. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Take g = 9.81 m/s2. `L MV Your Answer: Answer
18-21. If corner A of the 60-kg plate is subjected to a vertical force of P = 500 N, and the plate is released from rest when 0=0°, determine the angular velocity of the plate when 0 = 45°. A P = 500 N 01 1 m B Prob. 18-21 1 m