An experimental device imparts a force of magnitude F = 48 lb to the front edge of the rim at A to simulate the effect of a slam dunk. Compute the moment of the force F about point O and about point B. The moments are positive if counterclockwise, negative if clockwise. Finally, locate a point C from the base at O to the location on the ground where the force imparts zero moment. The distance d from point O to point C is positive if C is to the right of O, and negative if to the left. Assume a = 36 in., b = 28 in., h = 12 in., H = 10 ft, c = 3, and d = 5. a h B b→ H F

An experimental device imparts a force of magnitude F = 48 lb to the front edge of the rim at A to simulate the effect of a slam dunk. Compute the moment of the force F about point O and about point B. The moments are positive if counterclockwise, negative if clockwise. Finally, locate a point C from the base at O to the location on the ground where the force imparts zero moment. The distance d from point O to point C is positive if C is to the right of O, and negative if to the left. Assume a = 36 in., b = 28 in., h = 12 in., H = 10 ft, c = 3, and d = 5. a h B b→ H F

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Rigid Body

A rigid body is an object which does not change its shape or undergo any significant deformation due to an external force or movement. Mathematically speaking, the distance between any two points inside the body doesn't change in any situation.

Rigid Body Dynamics

Rigid bodies are defined as inelastic shapes with negligible deformation, giving them an unchanging center of mass. It is also generally assumed that the mass of a rigid body is uniformly distributed. This property of rigid bodies comes in handy when we deal with concepts like momentum, angular momentum, force and torque. The study of these properties – viz., force, torque, momentum, and angular momentum – of a rigid body, is collectively known as rigid body dynamics (RBD).

Question

An experimental device imparts a force of magnitude F = 48 lb to the front edge of the rim at A to simulate the effect of a slam dunk.
Compute the moment of the force F about point O and about point B. The moments are positive if counterclockwise, negative if
clockwise. Finally, locate a point C from the base at O to the location on the ground where the force imparts zero moment. The distance
d from point O to point C is positive if C is to the right of O, and negative if to the left.
Assume a = 36 in., b = 28 in., h = 12 in., H = 10 ft, c = 3, and d = 5.
h
B
b→
H
F

Answers:
Mo =
MB =
d =
i
i
i
H
lb-ft
lb-ft
ft

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