Meters would be the best way to record the length
Answer:
<em>Well, Your answer will be is </em><em>840.96 mi. </em>
<em>Good Luck!</em>

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Answer:
16 m/s
Explanation:
Given that
y momentum = 0.080 *25 = 2
x momentum = 0.075*20 = 1.5
total momentum = √(4 + 2.25)
Total momentum = √6.25
Total momentum = 2.5
total mass = mass of x and y momentum = 0.075 + 0.080 = 0.155
speed of mass center = total momentum / total mass = 2.5/0.155 = 16.
And thus, the speed of the center of mass of this two-particle system at this instant is 16 m/s
OPTION D is the correct answer.
Refer to the attachment for complete calculation...