PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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The electric motor is used to pull a train at a maximum constant speed of 60 km/h. This motor has a power of 340 kW. The train is pulled directly up the inclination of 1 in 180. The tractive resistance against the motion is 80 N.1.Draw the free body diagram representing all forces acting on the train2.Calculate the mass of the train.
3. The pneumatic jack is used in a service station as shown in the figure below. If the car and lift
weigh 5000 lb, determine the force that must be developed by the air compressor at B to raise
the lift at a constant velocity. Air is in the line from B to A. The air line at B has an inner diameter
of 1 in., and the post at A has a diameter of 12 in.
apapay
A
12 in.
1 in.
B
Show that the specific force before and after the hydraulic jump is equal.
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