Explanation:
Let
and 
The sum of the two vectors is


The difference between the two vectors can be written as


Answer:
1)chest
2)deltoid
3)bicep
4)abs
5)quadriceps
6)lats
7)triceps
8)glutes
9)calves
10)hamstring
11)trapezuis
Explanation:
the explanation is the picture
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Explanation:
Work = force × displacement
532 J = 48 N × d
d ≈ 11 m