Question

AB is supported by cable BC and by a square rod that fits in a square hole at A. Draw the free-body diagram and determine the external reactions at A and the tension in cable BC needed to hold the 1000 lb cylinder in equilibrium. Assume right hand rule as positive sign convention.

Answer #1

The cord AB has a length of 5 ft and is attached to the end B of
the spring having a stiffness k = 10 lb/ft. The other end of the
spring is attached to a roller C so that the spring remains
horizontal as it stretches. If a 10-lb weight is suspended from B,
use the free-body diagram for the ring at B to determine the
necessary unstretched length of the spring, so that θ = 40◦ for
equilibrium....

A hungry bear weighing 735 N walks out on a beam in an attempt
to retrieve a basket of goodies hanging at the end of the beam (see
the figure below). The beam is uniform, weighs 200 N, and is 5.00 m
long, and it is supported by a wire at an angle of θ =
60.0°. The basket weighs 80.0 N.
A horizontal plank is attached at the left end to a vertical
wall. A rod with a pulley...

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