Question

a car starts to move from rest. after 10 sec, it gains the velocity of 90km/hr . calculate the acceleration of the car​

Answer 1

Answer:

answer is 2.5m/s^2

Explanation:

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your explanation

Answer 2

Answer:-

initial velocity=u=0m/s

Final velocity=v=90km/h

Convert to m/s

$\begin{gathered}\\ \sf\longmapsto 90\times \dfrac{5}{18}\end{gathered}$

⟼90× 18

5

$\begin{gathered}\\ \sf\longmapsto 25m/s\end{gathered}$

⟼25m/s

Time=5min=5×60=300s

We know that

$\boxed{\sf Acceleration=\dfrac{v-u}{t}}$

Acceleration=

t

v−u

$\begin{gathered}\\ \sf\longmapsto Acceleration=\dfrac{25-0}{300}\end{gathered}$

⟼Acceleration=

300

25−0

$\begin{gathered}\\ \sf\longmapsto Acceleration=\dfrac{25}{300}\end{gathered}$

⟼Acceleration=

300

25

$\begin{gathered}\\ \sf\longmapsto Acceleration=0.08m/s^2\end{gathered}$

⟼Acceleration=0.08m/s