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Loyalty discount! If the total amount of your purchases from the seller more than:

$1 the discount is 1%
$5 the discount is 2%
$10 the discount is 3%
$20 the discount is 5%
$50 the discount is 7%
$100 the discount is 10%
$200 the discount is 15%


9.4.2
The rod AB of length 2 m moves in the Oxy plane according to the equations xB = 4 cos 0.5? T, yB = 0.? = 0.5? T. Determine, at time t1 = 0.5, the projection of the velocity vector of the point A onto the Ox axis. (Answer -2.22)
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