Question

If a car accelerates at an average rate of 7.92 m/s2. Calculate how long it takes the car to speed up from 6.38 m/s to 34.86 m/s

Answer 1

Answer:

C JESUS IS LORD AND NO ONE CAN GET TO THE FATHER EXCEPT BY THROUGH HIM

Answer 2

$a = \dfrac{\Delta v}{\Delta t} \\~\\~\\a = \dfrac{v-v_0}{\Delta t} \\~\\~\\7.92 = \dfrac{34.86-6.38}{\Delta t} \\~\\~\\\Delta t = \dfrac{2848}{792} \\~\\~\\ \Delta t = 3+\dfrac{472}{792} \\~\\~\\\Delta t = 3+\dfrac{2^3\cdot(59)}{2^3\cdot(99)} \\~\\~\\\Delta t = 3 + 0.5959\cdots \\~\\~\\\Delta t \approx 3.6$

It takes aproximately 3.6 secs