Please show your work. Thank you! 61. A woman whose weight is 778 N is poised at the right end of a diving board with a length of 4.51 m. The board has negligible weight and is bolted down at the left end while being supported 3.87 m away by a fulcrum. Find force that the fulcrum exerts in the board. Note: Express your answer in whole numbers

Please show your work. Thank you! 61. A woman whose weight is 778 N is poised at the right end of a diving board with a length of 4.51 m. The board has negligible weight and is bolted down at the left end while being supported 3.87 m away by a fulcrum. Find force that the fulcrum exerts in the board. Note: Express your answer in whole numbers

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter9: Statics And Torque

Section: Chapter Questions

Problem 1PE: (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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(a) When opening a door, you push on it perpendicularly with a force of 55.0 N at a distance of 0.850m from the hinges. What torque are you exerting relative to the hinges? (b) Does it matter if you push at the same height as the hinges?
A 6.0 m plank with a mass of 50 kg is supported on both ends. An 80 kg worker stands on the plank 1.5 m away from the left end. What weight must each end of the plank support? Separate your answers by a comma (i.e. 340 N, 567 N - the first answer for the left end, the second answer for the right end). Express your answer as a whole number (no decimal). Add the appropriate units.
2. A gymnast with mass 46.0 kg stands on the L. end of a uniform balance beam. The beam is 5.00 m long and has a mass of 250 kg (excluding the mass of the two supports). Each support is 0.540 m from its end of the beam. Answer the following questions. In unit-vector notation, what are the forces on the beam due to support 1 and support а. 2? b. What could be the mass of the balance beam such that the gymnast can just tip the beam at that position?
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There are four forces acting on a pole, A = 10i N, B = 20j N, C = -30j N, D = -40i N. What should be the magnitude of force E that must be exerted on the pole to maintain static equilibrium? Note: i and j are unit vectors a. 24.65 N b. 31.62 N c. 46.20 N d. 52.78 N e. No Answer
4. A 500 N diver stands at the end of a 4.0 m diving board. The diving board is attached by two supports 1.5 m apart as shown below. Find the force in each of the two supports if the diving board weighs 150 N? (The point of rotation at F2) Figure: Vector Diagram: 2.0 m 1.5 m W, = 150 N W, = 500 N og W, - 150 N W, - 500 N 1.5 m 2.5 m 2.5m
A fulcrum is placed 1.0 m from the edge of a 3.0 m-long wooden uniform plank of mass 20 kg. A weight W is placed at the edge of the short end to balance it. What is the proper amount of weight needed to balance the plank? (Hint: first find the plank's weight and draw its vector in the correct location) 4. W A1.0 m- - 3.0 m 5. Two children are on opposite ends of an 8.00 m-long seesaw that is pivoted in the middle. One child weighs 300. N while the other weighs 200. N. A third child weighing 150. N attempts to hop on and balance the seesaw. How far from the fulerum should she sit?
2. A gymnast with mass 46.0 kg stands on the end of a uniform balance beam. The beam is 5.00 m long and has a mass of 250 kg (excluding the mass of the two supports). Each support is 0.540 m from its end of the beam. Answer the following questions. In unit-vector notation, what are the forces on the beam due to support 1 and support а. 2? b. What could be the mass of the balance beam such that the gymnast can just tip the beam at that position?
Hi, I am in physics I and I'm trying to understand this word problem. It saids that a 6.0-m uniform board is supported by two sawhorses 4.0m apart. A 32kg child walks on the board to 1.4 m beyond the right support when the board start to tip. a.) Find the mass of the board b.) Then he walks back 0.40m and stands still. Find the forces exerted by the supports at this time. (use the mass found in part a). Please be detailed of how this works. Its a harder problem for me to understand. Thank you!
A hungry bear weighing 85.0 kg walks out on a beam in an attempt to retrieve a basket of food hanging at the end of the beam. The beam is uniform, has a mass of 20.0 kg, is 8.00 m long, and pivoted at the wall; the basket weighs 10.0 kg. If the wire can withstand a maximum tension of 900 N, what is the maximum distance that the bear can walk before the wire breaks? ←x 60.0⁰ Goodies
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