Find the normal accelerations at A and B.Answers:At A, an=iNAt B, an=iN The cars of an amusement park ride have a speed va = 17 m/s at A and a speed vg = 10 m/s at B. If a 87-kg rider sits on a spring scale(which registers the normal force exerted on it), determine the scale readings as the car passes points A and B. Assume that theperson's arms and legs do not support appreciable force.UB47 mBVA24 mA

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Answered: Find the normal accelerations at A and…

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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Q1/ A man of mass 75 kg ,and woman of mass 55 kg stand facing each other on an ice rink ,both wearing ice skates. The horizontal force of F=85 N in the positive x-direction Assume the ice is woman pushes the man with a Frictionless. a-what is the man's acceleration. b- what is the reaction force on acting on the woman. c-what is the woman's acceleration. Q2/ A force of 10 N acts on a body of mass 2 kg . what is : a- The acceleration of body. b- Its weight in Newton. c- Its acceleration if the force is double. Q3/ A 3 kg particle starts from rest and moves a distance of 4 m in 2 sec under the action of a single constant force. find the magnitude of the force ? Q4/ A 6 kg object undergoes an acceleration of 2 m/sec² . a- What is the magnitude of the resultant force acting on it ? b- If this same force is applied to a 4 kg object, what acceleration will it produce?
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2. The 70-kg door is to close automatically using torsional springs 0.4 m mounted on the hinges. If the torque on each hinge is M = k0, where 0 M is measured in radians, what value k should I be looking for in each of two torsional springs? I desire the door to close as quickly as possible, 1.5 m but to have its speed not exceed 2 rad/s at any time. The door can be opened a maximum of 0 =120°. 0.4 m M 1.2 m
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