Subject: Eng. Mech. Dynamics ITutorial Sheet 5University of BabylonKinetics of particles"Work and Energy"Class: 2ndCollege of Engineering/Al-MusayabLecturer: Mushrek A. Mahdi30Q1: The spring is undeformed (unstretched) whenx = 0. If the body moves from the initial positionx, = 100 mm to the final position x2 = 200 mm,determine:2 lb151- The work done by the spring on the body2- The work done on the body by its weight.[ Ans.: U, = -60 J, Uw = 2.35 J]Q4: The system is released from rest with noslack in the cable and with the spring4 kN/mwwwunstretched. Determine the distanced s traveledby the 10-kg cart before it comes to rest (a) if mapproaches zero and (b) if m = 2 kg Assume nomechanical interference7 kg[ Ans.: (a) s = 0. 663 m, (b) s = 0.349 m]2010 kg25Q2: The 64.4-lb crate slides down the curved pathin the vertical plane. If the crate has a velocity of 3ft/sec down the incline at A and a velocity of 25ft/sec at B, compute the work U, done on the crateby friction during the motion from A to B.k = 125 N/m[Ans.: Uf =-672 lb. ft ]3 ft/secQ5: The 2-kg collar is released from rest at A andslides down the inclined fixed rod in the verticalplane. The coefficient of kinetic friction is 0.40.Calculate (1) the velocity v of the collar as it strikesthe spring and (2) the maximum deflection x of thespring.20B 25 ft/sec[ Ans.: (1) v = 2.56 m/s, x = 98.9 mm]Q3: The 1.5-lb collar slides with negligible frictionon the fixed rod in the vertical plane. If the collar2 kgstarts from rest at A under the action of the constant0.5 m2-lb horizontal force, calculate its velocity vas it hits the stop at B.Hp =0.40[ Ans.: (1) v = 17. 18 ft/s]k = 1.6 kN/m60

Given datax1=100 mmx2=200 mmK=4 Nmm=7 kgTo find1) Workdone by spring on the body2) Workdone on…

Q1: The spring is undeformed (unstretched) when x = 0. If the body moves from the initial position x1 = 100 mm to the final position x2 = 200 mm, determine: 1- The work done by the spring on the body 2- The work done on the body by its weight. [ Ans.: U, = -60 J, Uw = 2.35 J]

Q1: The spring is undeformed (unstretched) when x = 0. If the body moves from the initial position x1 = 100 mm to the final position x2 = 200 mm, determine: 1- The work done by the spring on the body 2- The work done on the body by its weight. [ Ans.: U, = -60 J, Uw = 2.35 J]

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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