Determine the time required by a diesel-electric locomotive, which produces a constant drawbar pull of 122400 Ib, to increase thespeed of a 1960-ton freight train from 16 mi/hr to 27 mi/hr up a 2.4-percent grade. Train resistance is 9.5 Ib per ton.Answer:t= imin

Answered: Image /qna-images/answer/cb25bbca-8e4e-489c-8fb2-f2f41c46c1e6.jpg

Determine the time required by a diesel-electric locomotive, which produces a constant drawbar pull of 122400 lb, to increase t peed of a 1960-ton freight train from 16 mi/hr to 27 mi/hr up a 2.4-percent grade. Train resistance is 9.5 Ib per ton.

Determine the time required by a diesel-electric locomotive, which produces a constant drawbar pull of 122400 lb, to increase t peed of a 1960-ton freight train from 16 mi/hr to 27 mi/hr up a 2.4-percent grade. Train resistance is 9.5 Ib per ton.

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

An Experiment Engine was subjected to various speed tests and the values given in the table below were obtained.The density of the diesel fuel is 0.840 kg / lt, the moment arm length of the dynamometer is 0.25 m, the atm pressure at the time of the test is 99.70 kPa, the temperature is 290 K. The stroke volume of this single-cylinder engine is 0.296 dm3 (lt).By doing the calculations (showing the calculations) in all cycles for the following parameters according to the given, draw the graphs, interpret them and prepare a report;A) Speed-Moment curve of the motorB) Speed-Effective Power curve of the motorC) Engine Speed-Specific Fuel Consumption CurveD) Speed-Volumetric efficiency curve of the motorE) Motor Speed-Effective efficiency curve *For the representation of calculations in the reports, select only one test cycle from the desired test cycle and show the calculations of the test cycle you selected in your report. *However, all the calculated results will be presented…
Can this question be solved in 20 minutes?
11:Y a 36.ll OMANTEL moodle1.du.edu.om/mo The crate, which has a mass of 125 kg, is subjected to the action of the three forces shown in the figure. If it is originally at rest, determine the friction force when P1 = 500 N, P2 = 700 N, P3 = 800 N and 0 = 45°. Assume the coefficient of kinetic friction between the crate and the surface is Hk = 0.40. P2 P1 → P3 Select one: a. 436.94 N b. 215.68 N c. 302.91 N O d. 143.92N العربية الإنجليزية II
7:53 PM ← friction problems.pdf is V.3. Determine the force to be appreu to Dick D w produce the impending moon block B down the plane. 50⁰ Fig-5 Fig-6 6. Find the value of 0 if the blocks A and B shown in Fig.6. have impending motion. Given block A = 20 kg, block B = 20 kg. HAHB=0.25. 7. Find force P required to pull block B (shown in Fig. 7). Coefficient of friction between A and B is 0.3 and between B and floor is 0.25. Weights of A = 20 kg and B = 30 kg. B P B www/www/ 30° Fig-9 80 N 60° 50 N 1,0.30 40 N Fig-7 Fig-8 8. Three blocks are placed on the surface one above the other as shown in Fig. 8. The static coefficient of friction between the blocks and block C and surface is also shown. Determine the maximum value of P that can be applied before any slipping takes place. B 9. Two rectangular blocks of weight, W₁ = 150 N and W2 = 100 N are connected by a string and rest on an inclined plane and on a horizontal surface as shown in Fig.9. The coefficient of friction for all…
Answers should be 171lb, 18.59ft/s^2, Ax=72.17lb, Ay=125lb
A system of a 50 kg empty trolley and a 140 kg counterweight is shown in Figure below. After the counterweight has dropped 10 m from rest, the velocity of the trolley is 6 m/s. If all frictional resistances can be regarded as a single force F acting on the trolley parallel to the inclined plane, calculate the resistance of the force. Note that pulleys are smooth and frictionless.
B7
Please asap
For the beam loaded as shown, determine the deflection 6 ft from the wall. Use E = 1.5 x 106 psi and I = 40 in.* 80 lb/ft B 8 ft
Do it your own
A 300 HP crawler tractor is pulling a wagon of 25 cu yd capacity equipped with highpressure tires. The weights of the crawler tractor and the empty wagon are 25 tonsand 15 tons respectively. The haul road is well maintained and compacted earth.Select highest figure in range for rolling resistance. The coefficient of traction is0.75. Half of the weight of the crawler tractor and half of the weight of the loadedwagon need to be considered in the slippage check. No penetration occurs as thesurface is hard enough. The average temperature and barometric pressure at thesite location are 30oC and 56.00 cm of Hg respectively. The drawbarpull producedby the tractor at standard conditions is given in the machine’s manual as 15,000 kgin first gear. What is the gradability of the tractor/wagon combination if the wagon isloaded with dry earth? Take a gradability safety factor of 85%.
.A belt 200 mm wide and 7 mm thick drives a pulley at belt speed of 25 m/s. The density of the belt is 980 kg/m3 and the coefficient of friction between the belt and pulley is 0.23. Given that the angle of contact of pulley is 2π/3 and the allowable stress of the belt is 1.8 MPa, determine the tension on the slack side of the belt (T2) in N