Question

Find me the correct answer
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Answer 1

Answer:

answer is 12m. ....

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Answer 2

Answer:

Option (a) 12m

Step-by-step explanation:

0 to 2 seconds,

area of the triangle of side 2s and height 6m/s is the first displacement,

let us denote that by d1 = 1/2 (2s) (6m/s) = 6m

2 to 4 seconds,

area of the rectangle of length,2s and breadth -3m/s is the second displacement,

let us denote that by d2 = 2s * -3m/s = -6m

4 to 8 seconds,

area of rectange of length, 4s and breadth 3m/s is the third displacement,

and let that be denoted as d3 = 4s * 3m/s = 12m

So, at the end of 8 seconds,

the total displacement = d1 + d2 + d3

                                       = 6m + (-6)m + 12m

                                       = 12m