*25. ssm By accident, a large plate is 3.00 m/sdropped and breaks into three pieces.The pieces fly apart parallel to thefloor. As the plate falls, its momentumhas only a vertical component and nocomponent parallel to the floor. Afterthe collision, the component of the to-tal momentum parallel to the floor must25.0°1.79 m/sm245.0°remain zero, since the net external forceacting on the plate has no componentparallel to the floor. Using the datashown in the drawing, find the massesof pieces 1 and 2.m3 = 1.30 kg3.07 m/sProblem 25

Answered: Image /qna-images/answer/c0b7d750-4ed5-4abe-bbb9-1bac251bb6ea.jpg

Answered: *25. ssm By accident, a large plate is…

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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Firecracker a. A firecracker is at rest on a frictionless horizontal table. The firecracker explodes into two pieces of unequal mass that move in opposite directions on the table. Before i. Is the net force on the left piece always zero? Explain. After I1. Is the net force on the system consisting of both pieces always zero? Explain. iii. Is the momentum of the left piece conserved? Explain. 1V. Is the momentum of the system consisting of both pieces conserved? Explain.
10. As the text discusses, the conservation of linear momentum is appli- cable only when the system of objects is an isolated system. Which of the systems listed below are isolated systems? 1. A ball is dropped from the top of a building. The system is the ball. 2. A ball is dropped from the top of a building. The system is the ball and the earth. 3. A billiard ball collides with a stationary billiard ball on a frictionless pool table. The system is the moving ball. 4. A car slides to a halt in an emergency. The system is the car. 5. A space probe is moving in deep space where gravitational and other forces are negligible. The system is the space probe. (a) Only 2 and 5 are isolated systems. (b) Only 1 and 3 are isolated systems. (c) Only 3 and 5 are isolated systems. (d) Only 4 and 5 are isolated systems. (e) Only 5 is an isolated system.
A SMALL 0.65 BOX IS LAUNCHED FROM REST BY A HORIZONTAL SPRING .THE BLOCK SLIDES ON A TRACKDOWN A HILLAND COMES TO REST AT A DISTANCE d FROM THE BASE OF THE HILL .KINEIC FRICTION BETWEEN THE BOX AND THE TRACK IS NEGLIGIBLE ON THE HILL,BUT THE COEFFICIENT OF KINETIC FRICTION BETWEEN THE BOX AND THE HORIZONTAL PARTS OF TRACK IS 0.35.THE SPRING HAS A SPRING 34.5N AND IS COMPRESSED 30cm WITH THE BOX ATTACHED.THE BOX REMAINS ON THE TRACK AT ALL TIMES. (a)xcalculate the speed of the box before it starts descending down the hill
113 Blocks on a spring. Two blocks with masses m₁ and m₂ are connected by a spring and are free to slide on a frictionless horizontal surface. The blocks are pulled apart along an x axis and then released from rest. At any later time, (a) what fraction frac₁ of the total kinetic energy of the system will block 1 have and (b) what fraction fracz will block 2 have? (c) If m₁ > m2,which block has more kinetic energy? 中

There are two bodies which moving towards each other. They collide and stay connected. The presses the spring afterwards. Calculate the spring compression x. Result write in meters. Bodies are assumed as mass points and there is no friction. Bodies remains connected (into one body) after the collision. • m,u4kg • V,=16m/s • m3=Bkg • vz-34m/s • k-3,2kN/m • x+?m; Result needs to be with 3 digits precision k m, m, x=? Answer: 5.657
Figure Sm 8/ 15m 0 2m 4m Provide Feedback Request Answer
4) A toy wood block of mass m1= 3.25 kg is pushed by hand to compress a spring with a spring constant k= 550 N/m a distance As = 25cm. The toy block is released by the hand and the spring launches the toy block across a frictionless surface toward a more massive wood block ofimass m2= 5.0 kg. The 3.5 kg wood block is moving with an unkown velocity right before it collides with the more massive wood block which is at rest. After the collision, the 5.0 kg block is moving to the right with a velocity of 3 m/s. The more massive 5.0 kg block encounters a long rough section of surface having a coefficient of kinetic uk=0.22 and is eventually brought to rest. a) Find the velocity of the 3.25 kg block just before the collision. b) Find the velocity of the 3.25 kg block just after the collision c) What is the system's energy just before the collision? d) What is the system's energy just after the collision? e) Is this collision, elastic, completely inelastic, or inelastic? f) What is the…
*44. GO A 60.0-kg person, running horizontally with a velocity of +3.80 m/s, jumps onto a 12.0-kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. (b) The sled and person coast 30.0 m on level snow before coming to rest. What is the coefficient of kinetic friction between the sled and the snow?
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A body of weight 370 N body moving to the left with a velocity of 14 m/s collides with another body of weight 690 N body which is at rest. After impact the body which is moving before impact comes to rest. Find the final velocity of body after impact and the coefficient of restitution The final velocity of body after impact in m/s is The coefficient of restitution is
27-(a) A body of weight 440 N body moving to the left with a velocity of 10 m/s collides with another body of weight 760 N body which is at rest. After impact the body which is moving before impact comes to rest. Find the final velocity of body after impact and the coefficient of restitution . (b)A vehicle of mass 21 tonnes runs into a buffer stop having two buffer springs connected in series each of 1750 kN/cm and 2200 kN/cm stiffness respectively. Find the maximum compression of the springs, if the vehicle is travelling at 90 km/hr. Also calculate the load acting on the spring. a,Solution The final velocity of body after impact in m/s is The coefficient of restitution is b,Solution The maximum compression of the spring in mm is The load acting on the spring in kN is

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