Question

☆BRAINLIEAST QUESTION☆
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​Spam Incomplete answers=20 answers report

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Answer 1

Answer:

v-u/t

20+(5×7)/

Step-by-step explanation:

I think is correct or wrong

Answer 2

EXPLANATION:-

We know that:-

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

a=acceleration

v=final velocity

u=initial velocity

So the final velocity of the object is 0 because the object has stopped

and the initial velocity is 20 m/s (By observing the graph)

So let's put the data in the formula we get:-

$\sf\;a=\frac{0-20}{t}\\\\a=\frac{-20}{2}\\\a=-10$

Hence the acceleration of the body is -10 m/s² or the retardation is 10 m/s²