Engineering Fundamentals: An Introduction to Engineering, 4th ed.c

(Steven Felgate) #1

PROBLEMS



  1. Calculate the braking force required to bring the truck from its top speed to full stop in a
    distance of 250 ft.
    2 Calculate the linear momentum of the truck when fully loaded and cruising near its top
    speed. Calculate the force required to bring the truck from its top speed to a full stop in 5 s.

  2. Estimate the rotational speed of the tires when the truck is moving along near its top speed.

  3. Estimate the net torque output of the engine from the following equation:


power Tv


where


power is in lbfft /s


Ttorque (lbfft /s)


vangular speed (rad /s)


302 Chapter 10 Force and Force-Related Parameters


62080_10_ch10_p251-302.qxd 5/22/10 12:32 AM Page 302


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