Question

A bus starting from rest moves with a uniform acceleration of 0.1 metre per second square for 2 minutes its speed after two minutes will be *

Answer 1

Answer:

The speed after 2 minutes will be 12m/s

Explanation:

Given,

The bus start from rest i.e.

initial velocity , u = 0m/s

acceleration , a = 0.1m/s²

time taken ,

» t = 2 minutes

» t = 120s

From the equations of motion we have ,

$\tt \implies v = u + at \\ \\ \tt\implies v = 0 + 0.1 m {s}^{ - 2} \times 120s \\ \\ \tt\implies v = 12.0m {s}^{ - 1}$

Thus , the velocity after 2 minutes is 12 m/s

Answer 2

The speed after 2 minutes will be 12m/s

Step by Step Explanation:

Given that ,

The bus start from rest i.e.,

initial velocity , u = 0m/s

acceleration , a = 0.1m/s²

time taken ,

» t = 2 minutes

» t = 120s

From the equations of motion we have ,

Formula : v = u + at

v = 0 + (0.1)(120) = 12m/s