Question

How long will it take a car to go from complete stop to 44 km/hr if they are accelerating at 5 km/hr2

Answer 1

just apply v=u+at

0=44-5t

so t=44/5hour

Answer 2

Given that,

Initial speed of the car, u = 44 km/h

Acceleration of the car, $a=5\ km/h^2$

To find,

Time taken by the car to come to stop.

Solution,

First equation is :

v = u +at

u is initial speed

t is time taken

$t=\dfrac{v-u}{a}\\\\t=\dfrac{44\ km/h}{5\ km/h^2}\\\\t=8.8\ h$

So, the time taken by the car to come to a stop is 8.8 hours.

Learn more,

Acceleration

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