The rectangular coordinates of a particle which moves with curvilinear motion are given by x = 9.75t+2.25t² -0.55t³ and y = 5.77 + 18.72t - 3.45t2, 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 31° with the Dositive x-axis. Answers: V= a = t= i i+ i+ MI j) mm/s j) mm/s²

The rectangular coordinates of a particle which moves with curvilinear motion are given by x = 9.75t+2.25t² -0.55t³ and y = 5.77 + 18.72t - 3.45t2, 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 31° with the Dositive x-axis. Answers: V= a = t= i i+ i+ MI j) mm/s j) mm/s²

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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