Question

When a car driver travelling at a velocity of 10m/s applies brake and bring the car to the rest in 5s calculate acceleration of car?

Answer 1

ANSWER
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Initial Velocity ( u ) = 10m/s

Final Velocity ( v ) = 0

Time ( t ) = 5s

Acceleration = Rate in change in velocity/Total Time taken

a = (Final velocity - Initial velocit)/Time

a = ( 0 - 10 )/5

a = -10/5

a = -2 m/s^2 ANS

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#BE BRAINLY

Answer 2

Hey!!

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Given :-
￣￣￣
Initial Velocity【u】= 10 m/s

Final Velocity【v】= 0 m/s

Time【t】= 5 sec.

We know,

"Acceleration = Rate of Change of Velocity"

=> Acceleration (a) =$\frac{final \: velocity - initial \: velocity}{time}$

$a = \frac{v - u}{t} \\ = > a = \frac{0 - 10}{5} \\ = > a = \frac{ - 10}{5} \\ = > a = - 2 \: m/ {s}^{2}$

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Hope it Helps!!