Secure https llsession 654348 Hibbeler Engineering Mechanics

Secure https llsession 654348 Hibbeler, Engineering Mechanics: Dynamics, 14e Problem 12.49 12.49 Part A The car originally avelng no when subjected to the acceleration shown when 0. O suppose t Determine cars maximum veloceo. and Express your answer to three significant figures and inelude the appropriate une\" a Value Units Determine the smet when Express yeur answer to three ignincant tigures and inekude the appropriate units, 1 of 1 Air caps lock

Solution

Maximum velocity of car will be till the acceleration is positive that is till t=13 sec

v = u + a*t

v = 10 + 6*13 = 10 + 78 = 88 m/s

Final velocity ( t= 13 to t=t\')

v = u + a*(t\' - 13)

0 = 88 + -4*(t\' - 13)

22 = t\' - 13

t\' = 35 sec