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Confusion on displacement question

  • #1

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.
 

Answers and Replies

  • #2
PhanthomJay
Science Advisor
Homework Helper
Gold Member
7,147
492
5 minutes is 300 seconds. Watch units! Displacement has units of length.
 
  • #3
oh man, how little was my mistake *facepalm* :frown:.

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

thanks for your help! :D
 

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