Question

A bus starting from rest moves with a uniform acceleration of 0.1 m/s for 2 minutes. Find : (i) the speed acquired, (ii) the distance travelled.​

Answer 1

Correct question:-

A bus starting from rest moves with uniform acceleration of 0.1m/s² for 2 minutes.Find : (i)the speed acquired

(ii)the distance travelled

Given:-

→Initial velocity of the bus=0

→Time taken=2 minutes

→Acceleration of the bus=0.1m/s²

To find:-

→Speed/Velocity acquired(Final velocity)

Solution:-

Here,we can see that the time is given in minutes,so we shall firstly convert the time into seconds.

=>1 minute=60 seconds

=>2minutes=2(60)

=>120 seconds

By using the 1st equation of motion,we get:-

=>v=u+at

=>v=0+(0.1)120

=>v=12m/s

Now,by using the 2nd equation of motion,we get:-

=>s=ut+1/2at²

=>s=0×120+1/2×0.1×(120)²

=>s=0.05×120×120

=>s=720m

Thus:-

→Speed acquired by the bus is 12m/s.

→The distance travelled is 720m.