Question

A bus driver applying the brakes and slows down the
velocity of the bus from 60 km/h to 30 km/h in 5 second.
Calculate the acceleration of the bus. Express your answer in
SI unit.​

Answer 1

Answer:

initial velocity (u)=60km/h

final velocity (v)=30km/h

time(t)=5s

a=v-u/t

a=60-30/5

=30/5

=6m/

${s}^{2}$

Answer 2

Answer:

$acceleration = \frac{change \: in \: velocity}{time \: taken} \\ = \frac{(30 \times \frac{5}{18}) -( 60 \times \frac{5}{18}) }{5} \\ \\ = \frac{150 - 300}{18 \times 5} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ = \frac{150}{90} = 1.67 {ms}^{ - 2} \: \: \: \: \: \: \: \: \: \: \\ \\ \blue{\boxed{acceleration = 1.67 {ms}^{ - 2}}} \\ \\\red{\mathfrak{\underline{\large{Hope \: It \: Helps \: You }}}} \\ \green{\mathfrak{\underline{\large{Mark \: Me \: Brainliest}}}}$