Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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The construction company outside is raising a 200 foot steel beam using a crane. At the start, it's laying flat on
the ground. The bottom of the beam will always remain in the same exact spot on the ground, but the top of the
beam will be pushed up until it's standing straight up. During this process, there is an angle between the beam
and the ground that is increasing at a rate of .8 radians per minute. When the height of the beam is 100 feet
(where height refers to the distance between the top of the beam and the ground), at what rate is this height
increasing?
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- Water stands 40 ft above the top of a vertical gate which is 6 ft square and weighs 3000 lb. What vertical lift will be required to open the gate if the coefficient of friction between gate and guides is 0.3?arrow_forward1. A post is supported by a guy wire which exerts a pull of 100 N on the top of the post. If the angle between the wire and the ground is 60 degrees, what is the horizontal component of the force supporting the pole?arrow_forward5. Two trucks on opposite banks of a river pulls a boat moving parallel to the banks by means of two horizontal ropes. The tension in these ropes are 350 N and 200 N while the angle between them is 60°. What is the resultant pull on the boat and the angle of each ropes with the river?arrow_forward
- Please do it in 20 minutes. i'll give you thumbs up………arrow_forwardA man pulls a rope attached to a sled. If the rope makes an angle of 32° with the ground, determine the force the man must exert on the rope so that the effective force tending to move the sled along the ground is 150 N.arrow_forwardA steel beam is connected to a wall via a hinge and supported with a steel cable that can withstand up to 3000N of tension before it breaks. The beam is uniform and has a mass of 225 kg and a length of 3m. The cable is on an angle of 27 degrees with the horizontal beam. A flower pot of mass of 30 kg is moved a distance X away from the hinge (left end of the beam). Find the value of the maximum distance X the flowerpot can be moved before the cable breaks.arrow_forward
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