Confusion on displacement question

[ArcherofScience]

Homework Statement

A car moves east at 18 m/s for 5 minutes. What its displacement? It says that the answer
to this question from my teacher is: 5400 m.

Homework Equations

→ →
X= v *t

The Attempt at a Solution

→
V= 18 m/s [E]
t= 5 min.

→ → →
X= v *t = x= (18) (5)
→
X= 90 m/s [E]



am i wrong? or is my teacher's answer wrong? Because my teacher's answer does not include a direction and it seems impossible for that amount to be attained.

 

[PhanthomJay]

5 minutes is 300 seconds. Watch units! Displacement has units of length.

 

[ArcherofScience]

oh man, how little was my mistake *facepalm* .

yeh it turned 5400 m, but I'm putting to the east to make the answer complete.

thanks for your help! :D