Question

bus is moving with a speed of 10 m/s . How much time required to stop that bus if driver deaccelerate it at the rate of 2 m/s² *​

Answer 1

Given:

Initial velocity of bus = 10 m/s and retardation is 2 m/s².

To find:

Time needed to stop the bus?

Solution:

So, let time taken to stop be 't':

Applying equations of kinematics:

$v = u + at$

$\implies \: 0 = 10 + ( - 2)t$

$\implies \: 0 = 10 - 2t$

$\implies \: 2t = 10$

$\implies \: t = 5 \: sec$

So , time taken to stop is 5 seconds.