Mu=0.1d= 8.2 cm(b)2T1272mlö3.5 mmlömgExternal forcesEffective forces(a)(c) A father builds a swing for his children. The swing consists of aboard attached to two ropes, as shown in Figure 3.17. The swing ismounted on a tree branch, with the board 3.5 m below the branch. Thediameter of the branch is 8.2 cm and the kinetic coefficient of frictionbetween the ropes and the branch is 0.1. After the swing is installed andhis child is seated, the father pulls the swing back 10 and releases. Whatis the decrease in angle of each swing and how many swings will thechild receive before Dad needs to give another push?

Answered: Image /qna-images/answer/c06f057d-7425-4e13-af07-6a1790b5e029.jpg

Answered: A father builds a swing for his…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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I need an answer with a free body-diagram. Show all work as quickly as possible. Q: A wooden plank of negligible mass and length L = 2.8 m is used to keep in balance, horizontally, a small cube of mass 20.0 kg when applying a force F of 80.0 N at one end of the board. The distance, in meters, between the support point of the board and the position where find the cube is: a) 0.56 b) 0.80 c) 1.00 d) 1.12 e) 1.40
A 20 kg pulley with a 0.5 m radius is initially at rest. The rotational inertia of the pulley is 0.47 mr2. A 10 kg box hangs from a rope that is wrapped around the pulley that is also initially at rest. The box falls a set distance and gains a velocity of 8 m/s. Calculate the distance that the box fell to reach that velocity.
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A greedy cat of 4 kg is suspended at the end of the cabinet with a flap in which we store his treats (see the figure on the image). The valve is held in place by a rope attached to 5 cm from the pivot and acts at 10 in relation to the vertical. The damper is a homogeneous wood board of 2 kg mass and has an angle of 20 under the horizontal when opened. What is the tension module in the rope? 2. Determine the module of the horizontal and vertical forces exerted by the pivot.
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A 1.0 kg block is pushed 1.0 m at a con- stant velocity up a vertical wall by a constant force applied at an angle of 30.0° with the horizontal, as shown in the figure. The acceleration of gravity is 9.81 m/s². 1 kg 1 m Drawing not to scale. If the coefficient of kinetic friction between the block and the wall is 0.30, find a) the work done by the force on the block. Answer in units of I Answer in units of J 30° part 2 of 3 b) the work done by gravity on the block. Answer in units of J. Answer in units of N part 3 of 3 c) the magnitude of the normal force be- tween the block and the wall. Answer in units of N.
A greedy cat of 4 kg is suspended at the end of the cabinet with a flap in which we store his treats (see the figure on the next page). The valve is held in place by a rope attached to 5 cm from the pivot and acts at 10 in relation to the vertical. The damper is a homogeneous wood board of 2 kg mass and has an angle of 20 under the horizontal when opened. What is the tension module in the rope? 2. Determine the module of the horizontal and vertical forces exerted by the pivot.

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