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,2 lbdetermine:151- 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]wwwQ4: The system is released from rest with noslack in the cable and with the spring4 kN/munstretched. 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]20Q2: 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.25k = 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 collarstarts from rest at A under the action of the constant2 kg0.5 m2-lb horizontal force, calculate its velocity vas it hits the stop at B.Hq = 0.40[ Ans.: (1) v = 17.18 ft/s]k = 1.6 kN/m60

Q1) a)Here,spring constant,k=4000N/m Now work done by the spring U1-2=12k∆x2 Work done by the…

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.

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.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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