نقطتان )2(A couple can only rotate thebody but cannot translate thebodyFalse OTrue

In mechanics, a couple is a system of forces with a resultant moment but no resultant force. Since…

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A couple can only rotate the pody but cannot translate the * body False C True C

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter1: Introduction To Statics

Section: Chapter Questions

Problem 1.59P: Given r=4i6j+2km (position vector) F=20i+40j30kN (force vector) =0.8j+0.6k (dimensionless unit...

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STATICS AND STENGITH OF MATERIALS Question: Express force Fas a Cartesian vector, then determine its coordinate direction angles. Given: a = 1.5 ft b = 5 ft A C - 3 ft 60 F 8-60 deg Ib b. a B
QUESTION 2 Consider a pulley system shown below. k celle m, R, I What is the correct relationship between x and 0? A. This is a 2 DOF system. The two coordinates, x and 0, are independent. B. 1 x=-RO 2 OC.x= - RO O D.x=2R0 O E. Rx=0 F. 4x x = RO
Write D-H notation of the 3 joint robot. Hint: the angle a represents the rotation around the x-axis. Z3, Z4 Z1, Y²}x, X2 X,, Y bz b3 02 O, 0; #2 #1 Z2, Y3 #0
Figure 2 shows Lela pulling her wagon towards Teluk Nipah beach. In order to reach the beach, she need to move the wagon 100 meters from her initial standing which is at (0,0) in coordinates system. Figure 2. Lela pulling her wagon to the beach. a. Find the magnitude the wagon is moved from Lela's initial standing to the beach. b. In order to move the wagon, Lela make an angle of 30° with the ground and pulls her wagon with a force of 50 kg. i. Calculate the force vector (OR vector quantity) of the moving wagon. [Hint: Force Vector = Force x (Horizontal Direction + Vertical Direction)] Calculate the initial force in the horizontal direction and the initial force in the vertical direction.
64. A position vector locates one point in space relative to another point. True False 65. The tensile force developed in a continuous cable that passed over a frictionless pulley must have a constant magnitude throughout the cable to keep it in equilibrium. True False
$ Magnitude R= Direction 8 = Three forces act on point : A = 60 N at 135°, B = and C in this diagram to the correct magnitudes and directions. When this has been done correctly the dotted vector will become solid. 50 N at -45° and, C= 75 N at 60° 2. Pick up vectors A, B and C by their tails, and move them into a tip to tail arrangement. When this has been correctly done the resultant R will appear. measured Estimate the magnitude and direction of the resultant Based on this diagram, estimate the magnitude R and direction of the resultant. from the force R using the tip-to-tail method. 1. Move the tips of forces A, B, Submit part Submit part
EXAMPLE TL ROBOT - In a TL robot, assume that the origin of global coordinate system is at J2 · Determine the coordinate of the ef point if the joint twist by an angle of 30 degrees and the variable length is Im. · Determine the variable link length and angle twist if the ef is located at (0.7071,0.7071) J2(X2. Y2) Ean + (x, y) Jq(X1, Y1)
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In a vehicle when it is turned the axis of the wheel on the inside of curve turns through 45° angle whereas axis of the curve on outside curve of concentric circle turns to 30degree. The distance between the line joining front wheels and line joining rear wheels is 2.5 m, find the track (The distance between two front or rear wheels).
Q1: A: If the position of a certain body was (-13) unit according to X-axis, then it is moved to be arrived (40) unit according to the same axis (X-axis). Calculate the displacement of this body.
(b) A plastic rod AB of length L = 510 mm has a diameter d, = 30 mm as shown in Figure Q2(b). A plastic sleeve CD of length c = 300 mm and outer diameter d2 = 45 mm is securely bonded to the rod so that no slippage can occur between the rod and the sleeve. The rod is made of an acrylic with modulus of elasticity E1 = 3.1GPA and the sleeve is made of a polyamide with E2 = 2.5GP . (i) Calculate the elongation & of the rod when it is pulled by axial forces P=15KN . (ii) If the sleeve is extended for the full length of the rod, what is the elongation? (iii) If the sleeve is removed, what is the elongation?