Question

А o car is moving with a speed of 20 m/s, after applying the break it has come to rest after 10 seconds is the acceleration What​

Answer 1

$acceleration = a$

$initial \: velocity = u = 20ms$

$final \: velocity = v = 0ms$

$time = t = 10s$

$a = \frac{v - u}{t} \: \: \: formula$

$a = \frac{0 - 20}{10}$

$a = \frac{ - 20}{10}$

$a = - 2ms$