Subject: DYnamics At time t= 20 s, the velocity of a particle moving in the x-y plane is v = 0.12i + 2.64j m/s. By time t = 20.08 s, its velocity has become-0.08i + 2.45j m/s. Determine the magnitude aay of its average acceleration during this interval and the angle e made by the averageacceleration with the positive x-axis. The angle e is measured counterclockwise from the positive x-axis.Answers:im/s2agve =

Answered: Image /qna-images/answer/27db7409-f1b6-426a-841a-7be9818f19ce.jpg

Answered: At time t= 20 s, the velocity of a…

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

See similar textbooks

Similar questions

A train is moving horizontally to the right with the speed of VT=60 mi/h. Meanwhile, a car is traveling toward the train with the speed of VC=30 mi/h and a 30deg angle with respect to horizontal direction. Select the correct expression of the velocity vector of the train relative to the car ___________mi/h A. (60-30cos30°)-30sin30° B. (60-30cos30°) +30sin30° C. (60+30cos30°)-30sin30° D. (30cos30°-60) +30sin30°
The x-coordinate of a particle in curvilinear motion is given by x = 3.7t3 - 4.5t where x is in feet and t is in seconds. The y-component of acceleration in feet per second squared is given by ay = 1.7t. If the particle has y-components y = 0 and vy = 3.4 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 5.9 sec. Sketch the path for the first 5.9 seconds of motion, and show the velocity and acceleration vectors for t = 5.9 sec.Answers:
The x-coordinate of a particle in curvilinear motion is given by x = 4.1t3 - 3.1t where x is in feet and t is in seconds. The y-component of acceleration in feet per second squared is given by ay = 2.4t. If the particle has y-components y = 0 and vy = 2.8 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 3.5 sec. Sketch the path for the first 3.5 seconds of motion, and show the velocity and acceleration vectors for t = 3.5 sec. determine: a. v in ft / sec b. a in ft / sec2
The x-coordinate of a particle in curvilinear motion is given by x = 4.1t3 - 3.1t where x is in feet and t is in seconds. The y-component of acceleration in feet per second squared is given by ay = 2.4t. If the particle has y-components y = 0 and vy = 2.8 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 3.5 sec. Sketch the path for the first 3.5 seconds of motion, and show the velocity and acceleration vectors for t = 3.5 sec. a. determine v in ft / sec b. determine a in ft / sec2
The x-coordinate of a particle in curvilinear motion is given by x = 5.1t3 - 5.3t where x is in feet and t is in seconds. The y-component of acceleration in feet per second squared is given by ay = 1.5t. If the particle has y-components y = 0 and vy = 4.5 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 2.8 sec. Sketch the path for the first 2.8 seconds of motion, and show the velocity and acceleration vectors for t = 2.8 sec.
Imagine that the CD on the right side is rotating with a constantangular velocity of �=6 rad/s between t=0 and t=3 s. Then, at t=3 s,it is suddenly subjected to a constant angular acceleration of α=6rad/s2 for 2 seconds. Determine the number of turns for the totaltime interval from t=0 to t=5 s. (Diameter of the CD is 12 cm)
The velocity of a particle moving in the x-y plane is given by (4.32i + 5.97j) m/s at time t = 5.50 s. Its average acceleration during the next 0.029 s is (7.1i + 6.4j) m/s2. Determine the velocity v of the particle at t = 5.529 s and the angle θ between the average-acceleration vector and the velocity vector at t = 5.529 s.
5 (a)The x-coordinate of a particle in curvilinear motion is given by x = 3.7t3 - 4.5t where x is in feet and t is in seconds. The y-component of acceleration in feet per second squared is given by ay = 1.7t. If the particle has y-components y = 0 and vy = 3.4 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 5.9 sec. Sketch the path for the first 5.9 seconds of motion, and show the velocity and acceleration vectors for t = 5.9 sec.
The velocity of aparticle which moves along the x-axis is given by x = 40-3t² (m/s) where t is in seconds. Calculate the displacement Ax of the particle during the interval from t=2sec to = 4 sec.
A car is about to pass through an arc bridge, as shown in the figure below. Given that vx = 5 m/s, determine the magnitude and direction of the car’s acceleration at the highest point B, and at the end of the bridge, point C (assume the car is still on the bridge)
The three-dimensional motion of a particle is defined by the position vector r= (Rtcos ωnt)i + ctj + (Rt sin wnt)k. . Determine the magnitudes of the velocity and acceleration of the particle. (The space curve described by the particle is a conic helix.)
A particle which moves with curvilinear motion has coordinates in millimeters which vary with the time t in seconds according to x = 4.5t2 - 3.8t and y = 4.1t2 - t3/3.5. Determine the magnitudes of the velocity v and acceleration a and the angles which these vectors make with the x-axis when t = 4.2 s.

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS