Question

1. 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

Answer:

A bus starting from rest moves with a uniform acceleration of 0.1 m s-2 for 2 minutes. Find (a)the speed acquired, (b) the distance travelled. Thus, the bus will acquire a speed of 120 m/s after 2 minute with the given acceleration. Thus, bus will travel a distance of 720 m in the given time of 2 minute.

Answer 2

(a) 12 m/s

(b) 720 m

Explanation:

Given :-

Initial speed of the bus = 0 m/s

Acceleration = 0.1 m/s²

Time taken, t = 2 minutes

= 120 s

To find :

(a) Speed acquired

(b) Distance travelled.

Solutions :-

Putting all the value, we get

(a) Speed acquired =

v = u + at

⇒ v= 0 + 0.1 × 120

⇒ v = 12 m/s

(b) Distance travelled.

v² - u² = 2as

⇒ (12)²- (0)² = 2(0.1) s

⇒ s = 720 m

Hence, Speed acquired finally by the bus is 12 m/s.

And Distance travelled by the bus is 720 m.

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