Question

brakes applied to car produce a uniform retardation of 90 cms^2 if the car was traveling with the velocity of 27 ms^1 then what distance will it cover before coming to rest​

Answer 1

Answer:

Explanation:

Given : a = -0.9m/s² (because its retardation)

v = 0 (Because in the final, the car stops)

u = 27m/s (its already given)

To find : Distance 'd'

Solution : The formula we will be using is -

V²=U²+2as

So,

(0)²= (27)²+2(-0.9)(s)

0 = 729 +( -1.8)(s)

=> 1.8s = 729

=> s = 729/1.8

So, the answer is s = 405 metres

Answer 2

Answer:

$\sqrt{582}$