Let the vector a\bf aa has components
ax=−2.5 ma_x=-2.5\:\rm max=−2.5m
ay=4.2 ma_y=4.2\:\rm may=4.2m
Thus, the magnitude of the vector a\bf aa
The angle that vector a\bf aa makes with positive x-direction
Answer: a=(4.9 m;121∘){\bf a}=(4.9\:\rm m;121^{\circ})a=(4.9m;121∘)
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