8:24 AM 87% OO sess masteringphysics.com Spring 2016 Phys 1321. 2,6 of 10 Exerci

Question

8:24 AM 87% OO sess masteringphysics.com Spring 2016 Phys 1321. 2,6 of 10 Exercise 2.6 A Honda Civic travels in a straight line along a road. Its distance z from a stop sign is given as a function of time t by the equation z(t) a t2 B ts, where a 1.59 m/s2 and B 5.20x102 m/s Part A to ti 1.90 s Submit My Answers Give Up Part B Calculate the average velocity of the car for the time intervalt 30 to t2 4.06 s Submit My Answers Give Up Part C Calculate the average velocity of the car for the time intervalti 1.90 s to t 4.06 s Submit My Answers Give Up

Explanation / Answer

(A) V= 2*1.59*T-3*5.2*10^-2*t ^2       we differentiate x w.r.t t to get v.

v(0)=0

v(1.9) = 5.47

vav = 5.47/1.9 = 2.8838

(B)3.5466

(C) VAV =[ V(4.06)-V(1.9)]/(4.06-1.9)= 2.2504

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