Q. A car moving along a straight highway with speed of $126 K m h^{- 1}$ is brought to a stop with in a distance of 200m. what is the retardation of the car

1763 222 Motion in a Straight Line Report Error

A

$3.06 m s^{- 2}$

51%

B

$4 m s^{- 2}$

21%

C

$5.06 m s^{2}$

14%

D

$6 m s^{- 2}$

14%

Solution:

$ν^{2} - u^{2} = 2 a s$