Question

In the crash test, the passenger compartment comes to rest in 0.20 s. Calculate the deceleration of the passenger compartment.

Answer 1

Timing of the passenger to come in rest = 0.20 sec

Let say that initial speed is = u

Final speed = 0

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Formula of deceleration =>

$a = \frac{v - u}{t}$

$\frac{0 - u}{0.20}$

Deceleration =

$\frac{ - u}{0.20} \frac{m}{sec}$

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Formula used :-

Deceleration = Change in velocity / Change in time .

Deceleration means to reduce the time .

Example :- a car is moving with a uniform speed then after sometimes due to you send it goes slow this is termed as Deceleration .