Answer: 
Step-by-step explanation:
Use the formula for calculate the distance between two points:

Calculate the distance AB. Substitute the coordinates into the formula. Then:


Calculate the distance A'B'. Substitute the coordinates into the formula. Then:


As you can see, the distance A'B' is the distance AB multiplied by 1/2. Therefore, this is the scale factor.
A fraction is a way to describe a part of a whole. The fraction of the whole is each piece is 1/6.
<h3>What is a Fraction?</h3>
A fraction is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25.
The number line between 0 and 1 is partitioned into 6 equal pieces. Therefore, a single unit will exist between 0 and 1, which will be divided into six equal parts. Therefore, each fraction will be 1/6 of the unit.
Hence, the fraction of the whole is each piece is 1/6.
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Answer:
a=-1/2 step by step solution is attached to this solution
The velocity of a body is 22.3607 m/s^2