Freight car A with a gross weight of 190,000 lbs is moving along the horizontal track in a switching yard at 4 mi/hr. Freight carB with a gross weight of 90,000 lbs and moving at 7 mi/hr overtakes car A and is coupled to it. Determine:(a) the common velocity v of the two cars as they move together after being coupled, and(b) the loss of energy |AE due to the impact.7 mi/hr4 mi/hrBA(a) v=4.964mi/hr(b) |E|=ft-lbs

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Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Q2: What would be the equilibrium cant on a B.G curved track of 8° if the speeds of several trains running on a main curve track are as follows: i- 15 trains at speed of 50 kmph. ii- 10 trains at speed of 60 kmph. 5 trains at speed of 70 kmph. iii- iv- 2 trains at speed of 80 kmph. Also calculate the max. Permissible speed on these line.
In an ore-mixing operation, a bucket full of ore is suspended from a travelling crane which moves along a stationary bridge. The bucket is to swing no more than 10 ft horizontally when the crane is brought to a sudden stop. Determine the maximum allowable speed v in ft / s of the crane .
The train is traveling at a speed of 28 mi/h when the brakes are fully applied on the wheels of cars B and C, causing them to slide on the track, but are not applied on the wheels of car A. Determine the force in each coupling, if the coefficient of kinetic friction is 0.35 between the wheels and the track, m₁ = 38 tons, m² = 47 tons, and mc = 56 tons. B
Rapid-transit trains A and B travel on parallel tracks. Train A has a speed of 101 km/h and is slowing at the rate of 2.1 m/s2, while train B has a constant speed of 52 km/h. Determine the velocity and acceleration of train B relative to train A.
A 15 tons locomotive moving at 5 m/s collides with and is coupled to a 45 tons car at rest on the same straight track. Find their common velocity after impact.
What would be the equilibrium cant on a B.G curved track of 8º if the speeds of several trains running on a main curve track are as follows: i- ii- 15 trains at speed of 50 kmph. 10 trains at speed of 60 kmph. 5 trains at speed of 70 kmph. 2 trains at speed of 80 kmph. iii- iv- Also calculate the max. Permissible speed on these line.
On a certain stretch of track, trains run at 60 kph. How far back of a stopped train should a warning torpedo be placed to signal an on coming train? Assume that the brakes are applied at once and retard the train at the uniform rate of 2 ft. per sec? V=60 kph S
Two trains travel on parallel tracks in the same direction. The leading train has a length of 180m and velocity of 120 kph. The second train has a length of 100m and velocity of 180 kph. Their clear distance is initially 500 meters. 1. How long will it take for the second train to reach the rear of the first? a. 47.6 sec b. 53.6 sec c. 30 sec d. 57.6 sec 2. How long will it take for their front to be abreast. a. 77.6 sec b. 40.8 sec c. 97.6 sec d. 64.8 sec 3. How long will it take for second train to fully overtake the first. a. 73.43 sec b. 83.6 sec c. 97.61 sec d. 46.8 sec
A light train made up of two cars connected by a coupling is traveling at 80 km/h when the brakes are applied to both cars. 80 KPH A B Knowing that car A has a mass of 20,000 kilograms and car B a mass of 25,000 kilograms, and that the braking force is 20 kN on each car, determine: (a) the distance traveled by the train before it comes to a stop(in meters), (b) the force in the coupling between the cars while the car is slowing down(in kN)
Two trains travel on parallel tracks in the same direction. The first train has a length of 100m and velocity of 200 kph. The second train has a length of 120m and velocity of 250 kph. Their clear distance is initially 800 meters.1. How long will it take for the second train to reach the rear of the first? a. 47.6 secb. 53.6 secc. 67.6 secd. 57.6 sec2. How long will it take for their front to be abreast. a. 77.6 secb. 83.6 secc. 97.6 secd. 64.8 sec
Question 14 Determine the area of the moment diagram of the structure L O ML O L/2 O MI
Find final velocity of car U=4.01 m/s a=2 m/s2 t=3 s

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