Answer to Question #307075 in Molecular Physics | Thermodynamics for Rafat Anam

Question

Assume that a car decelerates at 2.0m/s2 and comes to a stop after traveling 25m.

a) Find the speed of the car at the start of the deceleration and

b) Find the time required to come to a stop.

Answer 1

$v=\sqrt{2as}=10~\frac ms,$

$t=\frac va=5~s.$