Question

a bus decreases its speed from 36 km to 18 km in 5 sec.calculate the acceleration

Answer 1

Answer:

Please do not mind the notebook.

Answer 2

$\huge{\star}{\underline{\boxed{\red{\sf{Answer :}}}}}{\star}$

Initial Velocity (u) = 36 km/h

Final Velocity (v) = 18 km/h

Time (t) = 5 sec

________________________________

We have formula :-

${\boxed{\boxed{\huge{\orange{\sf{v \: = \: u \: + \: at}}}}}}$

________[Put Values]

18 = 36 + 5a

5a = 18 - 36

5a = - 18

a = -18/5

a ≈ -3.6

$\huge{\sf{a \: = \: 3.6 \: ms^{-2}}}$

•°• Negative sign of acceleration represent that force is acting in opposite direction .

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