Question

. A bus starting from rest moves with a uniform acceleration of 0.1 m s2 for 2 minutes. Find (a) the speed acquired, (b) the distance travelled. ​

Answer 1

Explanation:

Here we have, Initial velocity (u) = 0

Acceleration (a) = 0.1ms-2

Time (t) = 2 minute = 120 second

(a) The speed acquired:

We know that, v = u + at

⇒

v=0+0.1m/s2×120s

⇒

v=120m/s

Thus, the bus will acquire a speed of 120 m/s after 2 minute with the given acceleration.

(b) The distance travelled:

We know that,

s=ut+1/2at2

⇒

s=0×120s+1/2×0.1m/s2×(120s)

2=1/2×1440m

=

720

m

Thus, bus will travel a distance of 720 m in the given time of 2 minute.