A bus accelerates uniformly from 36 {kmh}^{-1} to 72 {kmh}^{-1} in 5 s. Calculate the acceleration of the bus.

RRB Group D 15-Oct-2018 Shift 1 Solved Paper

Question : 2 of 84

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A bus accelerates uniformly from

36 \ {kmh}^{-1}

72 \ {kmh}^{-1}

in 5 s. Calculate the acceleration of the bus.

Solution:

Initial Velocity of the bus

=36{km} \/ {h}

10 {m} \/ {s}

Final Velocity of the bus

=72 {km} \/ {h}

20 {m} \/ {s}

Time

=5

seconds
Acceleration

=({v}-{u}) / {t},

where

{u}

is initial velocity

{v}

is final velocity and

{t}

is time.

(20-10) / 5=2 {m} \/ {s}^{2}

Acceleration of the Bus

=2 {m} \/ {s}^{2}

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