Question

a bus starting from a point attains a speed of 24 metre per second in 3 minutes find the acceleration of the bus​

Answer 1

Explanation:

use the kinematical equations

Answer 2

Given:-

Initial velocity of bus(u) = 0

Final velocity (v) = 24m/s

Time taken = 3 minutes

To find :-

The acceleration of bus

By using 1st equation of motion

$\boxed{\sf {v= u+at}}$

Time = 60×3= 180 seconds

$\longrightarrow\sf 24= 0+a\times 180\\ \\ \longrightarrow\sf 24 = 180a\\ \\ \longrightarrow\sf \cancel{\dfrac{24}{180}}=a\\ \\ \longrightarrow\sf \dfrac{2}{15}=a\\ \\ \longrightarrow\sf \ or \ a = {\boxed{\sf \ 0.133 m/s^2}}$

$\underline{\sf{\dag\ \ Acceleration=0.133m/s^2}}$

Some other equations of motion :-

$\bullet\sf s= ut+\dfrac{1}{2}at^2\\ \\ \bullet\sf v^2=u^2+2as$