1. Shown below is a power hacksaw. At this instant, the electric motor rotates counterclockwise and drives the free end of the motor crank (point B) at a velocity of 12 in./s. Additionally, the crank is accelerating at a rate of 37 rad/s2. 15° B 30° 1.75" (a) a. Draw the Acceleration Polygon. b. Find the relative Acceleration of C with respect to B. Locate all the Instantaneous Centers. С.

1. Shown below is a power hacksaw. At this instant, the electric motor rotates counterclockwise and drives the free end of the motor crank (point B) at a velocity of 12 in./s. Additionally, the crank is accelerating at a rate of 37 rad/s2. 15° B 30° 1.75" (a) a. Draw the Acceleration Polygon. b. Find the relative Acceleration of C with respect to B. Locate all the Instantaneous Centers. С.

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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1. Shown below is a power hacksaw. At this instant, the electric motor rotates counterclockwise and drives the free end of the motor crank (point B) at a velocity of 12 in./s. Additionally, the crank is accelerating at a rate of 37 rad/s2. 15° 6" B 30° 1.75" (a) a. Draw the mechanism to scale. b. Draw the Velocity Polygon. Use Appropriate scale. c. Find the Relative Velocity of C with respect to B. d. Draw the Acceleration Polygon. e. Find the relative Acceleration of C with respect to B. f. Locate all the Instantaneous Centers.
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Member AB has the angular velocity WAB = 4.5 rad/s and angular acceleration a AB = 6 rad/s². (Figure 1) Figure A 200 mm 300 mm 1 @AB a AB B 500 mm 0= 60° 1 of 1 Determine the angular acceleration of member CD at the instant shown measured counterclockwise. Express your answer using three significant figures. Enter positive value if the angular acceleration is counterclockwise and negative value if the angular acceleration is clockwise. ACD = Submit VO ΑΣΦ ↓↑ vec 325 Previous Answers Request Answer X Incorrect; Try Again < Return to Assignment Review Provide Feedback ? rad/s²
5. Two cars are traveling around a circular track as shown below. Answer the following questions. a. Use the drawing provided to clearly indicate the origin and direction of û, and ûn for each car. a. b. If both cars are traveling at the same speed, which car has a greater normal acceleration? Justify your response in words. C. If both cars travel at 50 mph, what is their velocity in ft/s? Show your work. Magnitude rounded to 3 sig. fig. Magnitude rounded to 3 sig. fig. Units 6. At the instant shown below, the bucket of the backhoe traces a path defined by r = 25 sin 0 ft, where 8 is in radians. When the bucket is at 0 = 100°, its angular velocity is 1.8 rad/s and its angular acceleration is Ö = -0.4 rad/s2. Answer the following questions. What is the radius, r, at this instant? Show your work. Magnitude rounded to 3 sig. fig. Units b. What is ve at this instant? Show your work. Units 7-400 ft = fe= 390 ft B
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The slider P in the image below has a constant velocity of 2.6 m/s to the left. Calculate the angular velocity w of link OA at the instant when 43° as shown, expressing your answer to one decimal place, in units of rad/s (but do not include the units in your answer). Use a sign convention that anticlockwise is positive (ie if you calculate 15.359 rad/s CW, your answer should be -15.4, and if CCW, 15.4). A 9cm 4cm P Ө 0
If crank AB rotates with an angular velocity of wAB angular acceleration a AB = 6 rad/s? at the instant shown, determine: 1.1. The angular velocity of rod BC and the velocity of the slider block 1.2. The angular acceleration of rod BC and the linear acceleration of = 5 rad/s and an 0.5 m 0,3 m B 60° 30° WAB slider Block. 1.3. Locate the instantaneous center (IC) of the rod BC. CAB
Two pulleys are fixed to each other and driven by a belt. When the belt reaches to the velocity of v=0.1 m/s, the total acceleration of point P is 1 m/s2. Determine the acceleration of point B at that instant. 200 mm B 200 mm
Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. An automobile travels to the left at a constant speed of 92 km/h. The diameter of the wheel is 650 mm. 30 B Determine the acceleration of point C. The acceleration of point Cis m/s2 t. 650 mm
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Figure Q1(b) shows a train travelling along a circular curve of a radius r = 300 m. Atthe instant shown, its angular rate of rotation is 0.03 rad/s which is decreasing at0.0015 rad/s2. Calculate the magnitude of train’s velocity at this instant shown andalso calculate the magnitude and direction of the train’s acceleration at this instant.
b c d and e pls