Question

Your English teacher runs 0.80 km north and 1.20 km west. What is the magnitude of the resultant vector of this position?

Answer 1

Answer:

Answer: B

${ \rm{resultant = \sqrt{ {d _{1} }^{2} + {d _{2}}^{2} } }}$

• d1 is 0.80 km
• d2 is 1.20 km

${ \rm{resultant = \sqrt{ {(0.80)}^{2} + {(1.20)}^{2} } }} \\ = { \rm{ \sqrt{2.80} }} \\ { \boxed{ \mathfrak{ \: \: answer = { \rm{1.44 \: km}}}}}$