Question

Speed of truck is 40 m s - 1, after 10 seconds its speed decreases to 20 m s - 1, its acceleration is

Answer 1

answer this question is-2

Answer 2

Given that,

Initial speed of the truck, u = 40 m/s

Final speed of the truck, v = 20 m/s

Time, t = 10 s

To find,

Acceleration of the truck.

Solution,

Acceleration of truck is given by :

$a=\dfrac{v-u}{t}\\\\a=\dfrac{20-40}{10}\\\\a=-2\ m/s^2$

So, the acceleration of the struck is $2\ m/s^2$ and it is retarding.

Learn more,

Acceleration

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