The rectangular coordinates of a particle which moves with curvilinear motion are given by x= 9.75t+2.50t² -0.40t³ and y = 5.45 +25.04t - 3.31t², where x and y are in millimeters and the time t is in seconds, beginning from t = 0. Determine the velocity v and acceleration a of the particle when t = 7 s. Also, determine the first time that the velocity of the particle makes an angle of 28° with the positive x-axis. Answers: v = (i a = (i t= i i+i i+ i S j) mm/s j) mm/s²

The rectangular coordinates of a particle which moves with curvilinear motion are given by x= 9.75t+2.50t² -0.40t³ and y = 5.45 +25.04t - 3.31t², where x and y are in millimeters and the time t is in seconds, beginning from t = 0. Determine the velocity v and acceleration a of the particle when t = 7 s. Also, determine the first time that the velocity of the particle makes an angle of 28° with the positive x-axis. Answers: v = (i a = (i t= i i+i i+ i S j) mm/s j) mm/s²

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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Concept explainers

Fluid Kinematics

The branch of science that deals with objects which are either in motion or stationary are studied under the branch of classical mechanics. Fluid mechanics is a subcategory of classical mechanics that deals with the behavior of fluids at rest (fluid statics) or in motion (posing some velocity). In fluid kinematics, studies focus on the associated motion of fluid particles or groups of particles, and its associated parameters like displacements, velocity, and acceleration without concerning about the forces that caused the motion. All the laws of classical mechanics are applied in the study of fluid kinematics.

Question

The rectangular coordinates of a particle which moves with curvilinear motion are given by x = 9.75t + 2.50t² - 0.40t³ and y= 5.45
+25.04t-3.31t², where x and y are in millimeters and the time t is in seconds, beginning from t = 0. Determine the velocity v and
acceleration a of the particle when t = 7 s. Also, determine the first time that the velocity of the particle makes an angle of 28°
with the positive x-axis.
Answers:
V = (i
a =
t =
i
i+ i
i+ i
S
j) mm/s
j) mm/s²

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