1. A traffic barrier is placed in front of a bridge pier in case a car was to slam into it. The force of the barrier on a vehicle is given as F (lbs) = Ax where A has units of lbs/ft and x has units of ft. Determine the minimum value of A if the barrier is to stop a truck with weight 8000 lbs moving at speed 40 mph within 6 ft.
1. A traffic barrier is placed in front of a bridge pier in case a car was to slam into it. The force of the barrier on a vehicle is given as F (lbs) = Ax where A has units of lbs/ft and x has units of ft. Determine the minimum value of A if the barrier is to stop a truck with weight 8000 lbs moving at speed 40 mph within 6 ft.
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter1: Introduction To Statics
Section: Chapter Questions
Problem 1.1P: A person weighs 30 lb on the moon, where g=5.32ft/s2. Determine (a) the mass of the person; and (b)...
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