Question

A bus was moving with a speed of 36km/h. On applying brakes it stopped in 4 seconds.
Calculate acceleration and the distance travelled before sleeping

Answer 1

Answer:

Explanation: I hope it may help u .

Given : u = 36 km/h = 10 m/s , v = 0 m/s ( since it is a case of retardation ) , t = 4 s

Using the relation a = v - u /t

= 0 - 10 / 4      

= -10/4

= -2.5 m/s²

Now , to find the displacement

using the relation v = d/t

d = v × t

= 36 × 4

= 144 km

 

Answer 2

Answer:

given:

u=36km/h=10m/s

v=0m/s

t=4s

using the relation a=v-u/t

=0-10/4

= - 10/4

= - 2.5m/s²

displacement ..

v=d/t

=v×t

=36×4

=144km answer