3. The 2kg ball is attached to 1.2 m light string, making a simple pendulum. It is displaced angle 45degrees from the vertical and released at t=0s. Directly below the pivot of the pendulum is a 2kgbox, attached to a spring of constant k=0.4N/m on a frictionless, horizontal surface. When theboll collides with a box, the boll disconnects from the string and sticks to the box.(a) At what time will the spring first reach its maximum compression?(b) Find the amplitude of the spring oscillations.α

Answered: 3. The 2kg ball is attached to 1.2 m…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Qn. 1 b
The particle of mass m = 2.3 kg is attached to the end of the light rigid bar of length L = 0.83 m. The system is released from rest while in the horizontal position shown, at which the torsional spring is undeflected. The bar is then observed to rotate 45° before stopping momentarily, (a) Determine the value of the torsional spring constant kr. (b) For this value of kr, determine the speed vof the particle when e = 25°. kT Part 1 Position 1 is the horizontal orientation shown in the figure. Position 2 is the orientation when e- 45. Find the kinetic energy in positions 1 and 2. Answers: T1- kg m²/s2 T2- kg m²/s? Answers: (a) ky = i Nem/rad (b) m/s
A block with a mass of 150-kg is supported by a cable which passes over a 150-mm diameter pulley that is attached to a frame as shown in the figure. Determine all forces acting on member BCD of the frame. 450 mm 400 mm- 70° E D 4 -200- mm
Q1. A stool is sitting on a smooth surface as shown in the figure below. All the members of the stool are connected by pins. If a 100-lb kid is standing at the centre of the stool, what are the magnitudes of reactions at joints A and C? W E C 60° A B 0.691 ft 3 ft D 60° ↑ 1 ft 1 ft G
Calculate the reaction at support A and B as shown in figure below. 150KN 140kN C 130KN 8m A B 5m 5m 5m 5m 20m
Situation I: In figure shown a pulley is subjected to a torque whose value is 420 N- m. The coefficient of friction between the belt and the pulley is 0.40 1. What is the value of T1 to impend slipping? 2. What is the value of T2 to impend slipping? 3. What is the value of the horizontal reaction at the hinge? 0.27 m 420 N-m
The jib crane is designed for a maximum capacity of 9 KN, and its uniform I-beam has a mass of 240 kg. Plot the magnitude R of the force on the pin at A as a function of x through its operating range of x = 0.2 m to x = 4.3 m. On the same set of axes, plot the x- and y- components of the pin reaction at A. Do these plots on a separate piece of paper. Then answer the following questions in Wiley Plus as a check for your work. (a) What is the value of R when x = 0.8 m? (b) What is the value of R when x = 3.5 m? (c) Determine the minimum value of R and the corresponding value of x. (d) For what value of R should the pin at A be designed? 9 KN 1.6 m Questions: (a) If x= 0.8 m, R = KN (b) If x= 3.5 m, R= i KN m (c) The minimum value for R = i (d) The pin should be designed to hold -2.9 m i kN at x = kN. i
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The jib crane is designed for a maximum capacity of 6 kN, and its uniform I-beam has a mass of 190 kg. Plot the magnitude R of the force on the pin at A as a function of x through its operating range of x = 0.2 m to x = 3.8 m. On the same set of axes, plot the x- and y- components of the pin reaction at A. Do these plots on a separate piece of paper. Then answer the following questions in Wiley Plus as a check for your work. (a) What is the value of R when x = 1.6 m? (b) What is the value of R when x = 3.3 m? (c) Determine the minimum value of R and the corresponding value of x. (d) For what value of R should the pin at A be designed? 39° x m 6 KN -2.5 m 1.5 m Questions: (a) If x= 1.6 m, R= (b) If x= 3.3 m, R = i (c) The minimum value for R = i (d) The pin should be designed to hold i KN KN kN at x = kN. i
Section A A solid shaft is firmly held at both ends and carries two comparatively thin disks, as shown in Figure 1. The left-hand disc carries a torque of 12x10³ N.mm while the other carries a torque of 18x10³ N.mm in the same direction. The diameters of the shafts are also shown in Figure 1. Determine the following: the rotation of each disc, (ii) the reaction torques at the ends of the shaft, and the internal torque and maximum sheer stress in the left-hand portion of the shaft. The shaft material has a modulus of rigidity of 70x10³ N/mm². 12x10³ N.mm 18x10³ N.mm Ø 30 mm 1. (a) 210 mm Ø25 mm 480 mm Figure 1 Ø 35 mm 210 mm
Based on the following illustration, solve the following questions: 200 N/m M = 1000 Nm 2m 2m 2m 2m Calculate the reaction at the right support in KN. Select the correct response 300 400 1200 500 Continue> 2

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