6/92 The velocity of the 8-kg cylinder is 0.3 m/s at a certain instant. What is its speed u after dropping an additional 1.5 m? The mass of the grooved drum is 12 kg, its centroidal radius of gyration is k = 210 mm, and the radius of its groove is r = 200 mm. The frictional moment at O is a constant 3 N.m. 8 kg DRO m = 12 kg k = 210 mm EM Ti = 200 mm ro = 300 mm To

6/92 The velocity of the 8-kg cylinder is 0.3 m/s at a certain instant. What is its speed u after dropping an additional 1.5 m? The mass of the grooved drum is 12 kg, its centroidal radius of gyration is k = 210 mm, and the radius of its groove is r = 200 mm. The frictional moment at O is a constant 3 N.m. 8 kg DRO m = 12 kg k = 210 mm EM Ti = 200 mm ro = 300 mm To

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

A motorcycle and rider have a combined mass of 350kg. The each wheel has a mass of 20kg with the diameter of 500 mm. The rider accelerates from 5m/s to 25m/s over a distance of 100m, whilst climbing a hill of slope 1 in 20. Identify the magnitude and effect of gyroscopic reaction torque by calculating the angular velocity and power as the motorcycle ascends the incline when the motorcycle and rider travel at 80 km/h around a left-hand bend of road with the radius 30 m.Explain the effects of energy transfer in mechanical systems (e.g. gears, pulley or flywheel) with uniform acceleration present.
On a sloping road, the driver of the 1.3-tonne car, with an almost constant 300 N thrust from its engine, brakes at point A while driving at 90 km/h.a- Calculate the kinetic friction coefficient of the road to stop by traveling 50 m.b- Calculate the stopping distance (using the kinetic friction coefficient you found in part a) when you apply the brakes while going downhill at the same speed from B to A.
The G weight of the figure, when descending, rotates the axis fixed to drums, which are supported by two cylindrical bearings of known dimensions, with known angular velocity ω. Determine the value of weight G, neglecting the rigidity and friction in the rope and assuming that the velocity diagram in the lubricant is linear. Given Data: μ = 8x10⁻² N/m², Di = 0.100 m,D = 0.02 m, Li = 0.1 m,De = 0.101 m, ω = 20/π rd/s
A uniform crate C with mass m is being transported to the left by a forklift with a constant speed v1 . What is the magnitude of the angular momentum of the crate about point A , that is, the upper left corner of the crate?a. 0b. mv 1dc. 3mv1d. mv 1
A uniform crate C with mass m is being transported to the left by a forklift with a constant speed v1 . What is the magnitude of the angular momentum of the crate about point D , that is, the upper left corner of the crate?a. 0b. mv 1ac. mv 1 bd. mv 1
The three masses in the figure are different. The planes do not have friction with the masses and the plane of mass 3 corresponds to a quarter of a circumference. All three masses are released at the same time. The masses m2 and m3 travel the same distance. The first mass that will reach the bottom of the ramp will be: m1 m2 m3 m2 and m3 m1 and m2 m1 and m3 they will all arrive at the same time
1)Calculate the velocity of the arm, observed by a stationary person on the ground.2)Draw the FBD of the combined body (crane body, arm and load).3)Is the combined body stable? Why?4)Calculate the moment of the following, about wheel A,i) combined crane bodyii) load mass5)Which combined body’s component(s) will not fail? Why? (Hint: The crane was initially in equilibrium.)6)What are the various limits (maximum or minimum) for the combined body to be stable? Explain why.
Just like the change in momentum over time generates a force (P=F) , the change in ∆t angular moment results in a torque (L = τ) . Using the theoretical values for the moments∆tof inertia of the hollow cylinder and disk, determine the torque done on the system whenthe cylinder is dropped on the disk. Take ωi = 9.5 rd/s, ωf = 6.1 rd/s, and ∆ t = 2 s
In a Porter governor, the mass of the central load is 18 kg and the mass of each ball is 2 kg. The toparms are 250 mm while the bottom arms are each 300 mm long. The friction of the sleeve is 14 N. Ifthe top arms make 45° with the axis of rotation in the equilibrium position, find the range of speed ofthe governor in that position.
In a porter governor the mass of the central load is 18 kgand the mass of each ball is 2kg. the top arms (254) mm while the bottom arms are (304) mm long. The friction of the sleeve is 20 N. If the top arms make 45 deg with the axis of rotation in the equilibrium position, find the range of the speed of the governor in that position
A small 2-lb ball B is rotating (Fig.13) at angular speed w1 of (6+(0.1*26)) rad/sec about a horizontal shaft. The ball is connected to the bearings with light elastic cords which when unstretched are each 12 in. in length. A force of 15 lb is required to stretch the cord. The distance d1 between the bearings is originally 20 in. If the bearing A is moved to shorten d by 6 in, what is the angular velocity w2 of the ball? Neglect the effects of gravity and the mass of the elastic cords. Use the moment of momentum equation.
The pilot of a crippled jet was able to control his plane by throttling the two engines. The plane has a weight of 17000 lb and a radius of gyration of kG=4.7ft about the mass center G. Originally the plane is flying straight at a speed of 1200 ft/s . Neglect the effects of drag and the loss of fuel. If the thrust in each engine is altered to T1=800 lb and T2=5000 lb as shown, determine: Remark: The counterclockwise sense is the positive sense. The angular velocity of the plane in t=5s is Answer rd/s. The velocity of its mass center G in t=5s is Answer ft/s.