raphyadeola raphyadeola

15-12-2019
Physics

contestada

A car from rest moves a distance s(m) in t second, where s=3t³+t²/4 determine(i)the initial acceleration of the car (ii)the acceleration of the car at the end of 3rd second

Respuesta :

shanster shanster

15-12-2019

Answer:

0.5 , 54.5

Explanation:

for acceleration we should derivate the equation 2 times

x=3t³+t²/4

v=9t²+t/2

a=18t+1/2

a(0)=0.5

a(3)=54.5

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