A car is traveling at a constant speed of 54 km/h when its driver sees a child run into the road. The driver applies her brakes until the child returns to the sidewalk and then accelerates to resume her original speed of 54 km/h; the acceleration record of the car is shown in the figure. Assuming x=0 when t=0, determine (a) the time t₁ at which the velocity is again 54 km/h, (b) the position of the car at that time, (c) the average velocity of the car during the interval 1s < t≤ t₁ a(m/s²) 2 0 1 2 4.5 t₁t(s)

A car is traveling at a constant speed of 54 km/h when its driver sees a child run into the road. The driver applies her brakes until the child returns to the sidewalk and then accelerates to resume her original speed of 54 km/h; the acceleration record of the car is shown in the figure. Assuming x=0 when t=0, determine (a) the time t₁ at which the velocity is again 54 km/h, (b) the position of the car at that time, (c) the average velocity of the car during the interval 1s < t≤ t₁ a(m/s²) 2 0 1 2 4.5 t₁t(s)

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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