a free-body diagram represents the forces of several vehicles driving across a bridge. Assume that the bridge is in static equilibrium and that it has zero weight, and solve for the unknown reaction force.

a free-body diagram represents the forces of several vehicles driving across a bridge. Assume that the bridge is in static equilibrium and that it has zero weight, and solve for the unknown reaction force.

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter3: Force And Motion

Section: Chapter Questions

Problem 1FIB: A force is a quantity that is ___ of producing motion or a change in motion. (3.1)

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Concept explainers

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

Question

In the image below, a free-body diagram represents the forces of several vehicles driving across a bridge. Assume that the bridge is in static equilibrium and that it has zero weight, and solve for the unknown reaction force.

force.
Semi Truck
(150,000 N)
Car
Small Car
(17,800 N)
(10,800 N)
Reaction
Reaction
Force
Force
(121,200 N)
(?)

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