Impulse = change in momentum
Impulse = 2.3 (12 - 17)
Impulse = -11.5
Magnitude of Impulse = 11.5 Kg.m/s
Direction
theta = arctan (17 / 12)
theta = 54.78 degree North of east.
or
theta = 90 - 54.78 = 35.2 degree east of north
Therefore, correct option is A
42 A 2.3 ke object moving due north at 17 m's made contact with a barrier...
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