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 175 N at a distance of 0.500 m from the hinges, and the second pushes at a distance of 0.400 m. What force must the second exert to keep the door from moving? Assume friction is negligible. N

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 175 N at a distance of 0.500 m from the hinges, and the second pushes at a distance of 0.400 m. What force must the second exert to keep the door from moving? Assume friction is negligible. N

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 73P: (a) When opening a door, you push on it perpendicularly with a force of 55.0 N at a distance of...

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1) 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 175 N at a distance of 0.400 m from the hinges, and the second pushes at a distance of 0.450 m. What force (in N) must the second exert to keep the door from moving? Assume friction is negligible. _____ N
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 165 N at a distance of 0.400 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. Answer in N
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As shown on the right, a uniform rod with a weight W= 100 N and a length L = 2.0 m is hinged at the bottom end and is vertical. A light cable, tied to the rod at a height of h = 1.0 m, makes an angle 0 = 40° from the horizontal. A horizontal force F= 50 N is exerted at a height H = 1.5 m on the rod. (a) Draw a free-body diagram for the rod.(b) What is the tension in the cable?(c) What are horizontal and vertical components ofthe force exerted on the rod at the hinge?
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