University Physics Volume 1
18th Edition
ISBN: 9781938168277
Author: William Moebs, Samuel J. Ling, Jeff Sanny
Publisher: OpenStax - Rice University
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Textbook Question
Chapter 10, Problem 117AP
Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 17.5 N at a distance of 0.600 m from the hinges, and the second child pushes at a distance of 0.450 m. What force must the second child exert to keep the door from moving? Assume friction is negligible.
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Two children push on opposite sides of the door during play. Both push horizontally and perpendicular to the door. One pushes with the force of 185 N at a distance of 0.600 M from the hinges, and the second pushes at a distance of 0.450 M. What force must the second exert to keep the door from moving? Assume friction is negligible.
n?
As shown below, a sign weighing 434 N is hanging (via a wire) from a uniform 480 N beam of length L. Additionally, the beam is attached to a cable that makes an angle ? (? = 30°) with the beam.
WebAssign Plot Determine the tension in the cable and the magnitude & direction of the force the hinge (the orange circle) exerts on the beam.Cable tension = 653.6 N Incorrect: Your answer is incorrect.
Hinge force = 815.597 N
Direction of hinge force = 46.05 relative to the vertical in quadrant 1 (incorrect)
A person who weighs 775 N supports himself on the ball of one foot. The normal force N = 775 N pushes up on the ball of the foot on one side of the ankle joint, while the Achilles tendon pulls up on the foot on the other side of the joint. The center of gravity of the person is located right above the tibia.
What is the tension in the Achilles tendon? If the force acting is upward, enter a positive value and if the force acting is downward, enter a negative value.
Chapter 10 Solutions
University Physics Volume 1
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