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

Answer: A) 12 m/s

              B) 720 m

Explanation:

                     A)  Given,

                                 u = 0 m/s

                                 a = 0.1 m/s2

                                 t = 2 min = 120 s

                    v = u + at

                       = 0 + 0.1 m/s2 × 120

                      = 12 m/s

B)  v² = u² + 2aS

    12² = 0² + 2 × 0.1 × S

    144 = 0.2S

     S = 144/0.2

      S = 720 m.

           

Answer 2

Answer:

s = ut + 1/2at^2

s = 0 * 120s + 1/2 * 1/10m/s^2 * 120s

s = 1/2 * 12m

s = 6m

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