Pulley A has a weight of 30 lb and a centroidal radius of gyration kn=0.40 ft. (Figure 1) Figure 0.8 ft 0.4 ft B A P0.2 ft C < 1 of 1 > ▼ Part A Determine the speed of the 16-lb crate C at the instant s = 10 ft. Initially, the crate is released from rest when s5 ft. The pulley at P "rolls" downward on the cord without slipping For the calculation, neglect the mass of this pulley and the cord as it unwinds from the inner and outer hubs of pulley A. Express your answer to three significant figures and include the appropriate units. vc= 10.6 HÅ → ft S Ⓒ Submit Previous Answers Request Answer ? * Incorrect; Try Again; 3 attempts remaining < Return to Assignment Provide Feedback Review

Pulley A has a weight of 30 lb and a centroidal radius of gyration kn=0.40 ft. (Figure 1) Figure 0.8 ft 0.4 ft B A P0.2 ft C < 1 of 1 > ▼ Part A Determine the speed of the 16-lb crate C at the instant s = 10 ft. Initially, the crate is released from rest when s5 ft. The pulley at P "rolls" downward on the cord without slipping For the calculation, neglect the mass of this pulley and the cord as it unwinds from the inner and outer hubs of pulley A. Express your answer to three significant figures and include the appropriate units. vc= 10.6 HÅ → ft S Ⓒ Submit Previous Answers Request Answer ? * Incorrect; Try Again; 3 attempts remaining < Return to Assignment Provide Feedback Review

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

The 9-1b box slides on the surface for which μ = 0.3. The box has a velocity v = 15 ft/s when it is 2 ft from the plate. (Figure 1) Figure V= 15 ft/s 2 ft 1 of 1 JIMM ▷ Part A If the box strikes the smooth plate, which has a weight of 25 lb and is held in position by an unstretched spring of stiffness k = 250 lb/ft, determine the maximum compression imparted to the spring. Take e = 0.8 between the box and the plate. Assume that the plate slides smoothly. Express your answer using three significant figures and include the appropriate units. X= 0.29 ft Submit Previous Answers Request Answer ? X Incorrect; Try Again; 2 attempts remaining 4
3. A yo-yo has a weight of 0.3 lb and a radius of gyration ko = 0.06 ft. If it is released from rest, determine how far it must descend in order to attain an angular velocity @ = 70 rad/s. neglect the mass of the string and assume that the string is wound around the central peg such that the mean radius at which it unravels is r = 0.02 ft.
17-C11 The moment of inertia of the pulley is 0.4 slug-ft²2. The coefficient of kinetic friction between the 5-lb weight and the table is 0.2. The pulling force P = (3= 0.1t) lb. System starts from rest. What is the speed of the 5 lb weight after 5 seconds? P 5 lb 6 in 2 lb
5. The coefficient of static friction between the flat bed of the truck and the crate it carries as shown in Figure 5 is µ, = 0.30. (a) Set up the appropriate global axes system and draw the free body, kinematic and kinetic diagrams of the crate on the bed. (b) Determine the maximum acceleration amax and hence the maximum velocity Vmax which the truck can acquire from rest in a distance of 50m up a 10-percent grade if the crate is not to slip backward. (c) If the truck was travelling on a horizontal road with the maximum speed you have determined in part (a) above, would the minimum stopping distance be different than 50 m as given above if the crate is not to slip? Give a brief engineering explanation in support of your answer. 10 Figure 5
The total weight of the go-cart and driver is 290 lb. The location of their combined center of mass is shown. The rear drive wheels together exert a 28 lb horizontal force on the track. Neglect the horizontal forces exerted on the front wheels. Assume the go-cart accelerates from rest to the right. (Figure 1) Part A What is the magnitude of the go-cart's acceleration? Express your answer with the appropriate units. HA ? Value Units a = Submit Request Answer • Part B What normal force is exerted on the tire at A? Express your answer with the appropriate units. ? NA = Value Units Submit Request Answer Part C What normal force is exerted on the tire at B? Express your answer with the appropriate units. Figure HÀ NB = Value Units Submit Request Answer 15 in < Return to Assignment Provide Feedback 6 in 16 in 60 in P Pearson
As part of her role, Jen is responsible for unloading some of the material that is transferred using a spool her team has put together (see the figure below). Each block of material (block A) is 20 kg, and the spool has a mass of 50 kg and a radius of gyration of ko = 0.280 m. Help Jen calculate the velocity of block A after it descends a total of 0.5 m from rest. 0.3 m 0.2 m op
The 2.28-kg uniform slender bar rotates freely about a horizontal axis through O. The system is released from rest when it is in the horizontal position 0 = 0 where the spring is unstretched. If the bar is observed to momentarily stop in the position 0 = 66°, determine the spring constant k. For your computed value of k, what is magnitude of the angular velocity of the bar when 0 = 48°. B 0.85 m 0.85 m 2.28 kg 0.29 my Answers: k = i N/m ω- rad/s 1
Part A The 200-lb wheel has a radius of gyration of kg = 0.75 ft. The upper wire is subjected to a tension of T = 90 lb. The coefficient of kinetic friction between the wheel and the surface is u = 0.1. (Figure 1) Determine the speed of the center of the wheel in 3 s, starting from rest. Express your answer to three significant figures and include the appropriate units. HẢ vG = Value Units Submit Request Answer Provide Feedback Figure 1 of 1 0.5 ft 1 ft
The slender 12-kg bar has a clockwise angular velocity of w = 2 rad/s when it is in the position shown Suppose that L = 2.9 m. (Figure 1) Figure 60⁰° 1 of 1 Part A Determine its angular acceleration, measured clockwise. Express your answer using three significant figures. Enter positive value if the angular acceleration is clockwise and negative value if the angular acceleration is counterclockwise. α = Submit Part B NA = Submit Part C 195| ΑΣΦ 41 Determine the magnitude of the normal reaction of the smooth surface A at this instant. Express your answer to three significant figures and include the appropriate units. NB = Submit Request Answer 0 μÅ Value Request Answer μA vec Value Request Answer Units Determine the magnitude of the normal reaction of the smooth surface B at this instant. Express your answer to three significant figures and include the appropriate units. 2 Units ? = ? rad/s² ?
The torsional spring has a stiffness of 20 N-m/rad and is undeflected when the 3-kg uniform slender bar is in an upright position. If the bar is released from rest in the horizontal position shown, find its angular velocity as it passes the vertical position. Neglect friction effects. 4 Type here to search ThinkVision K - Pan Tab Cape Look Esc Q A Z G FT W S # ONDA 3 F2 E D A $ 4 R F 5 F4 T G XCVB 8 a Y H N P6 F6 U J M F7 K ( F8 F10 F11 +Backspace Enter T F12 Shift Print Screen SysRq Insert 0.5 m Scroll Lock Delete Home Break End Page Up Page Down Naam Lock K 37°F Cloudy Home Lenovo B 20
A simple pendulum of mass m = 10 kg and length r= 1 m is mounted on the flatcar, which has a constant horizontal acceleration a = 1 m/s as shown. If the pendulum is released from rest relative to the flatcar at the position 0 = 0 deg, determine the expression for the tension Tin the supporting light rod for 0 = 45 deg and A = 90 deg.
Determine the radius of the turn, with an angular velocity of 0.270 rad/s. The aircraft weighs 5000 lb and is banked 20 deg during the turn. 106.64 ft O 230.79 ft 203.79 ft O 527.05 ft O 160.64 ft The load factor value is higher at a negative limit before structural damage True O False Tail wind speed is added to the takeoff speed True O False