MULTIPLE CHOICE QUESTION If she slows from 5 m/s to 0 in 0.1 s, what
was her acceleration that brought her to
a stop?
50 m/ss
5 m/ ss
0.5 m/ s2
0.05 m/ s2

this is poiselle's equation from fluid mechanic in physics. mech eng

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west