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Help on velocity and displacement

  • Thread starter QT
  • Start date
  • #1
QT
1
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Question:
Simpson drives his car with an average velocity of 48.0 km/h to the east, How long will it take him to drive 144 km on a straight highway?


now i know you start out with the given which is :
Vavg= 48.0 km/h east
delta x= 144km
delta t= ?
so you have to find the delta t but i dont know how
 

Answers and Replies

  • #2
145
0
Umm. Isn't this just a case of [tex] Speed = \frac {Distance} {time} [/tex]
:bugeye:

ie... re-arranging this equation.
 
Last edited:
  • #3
789
4
But make sure to include direction, as velocity and displacement are vectors.

[tex]\vec{v}=\frac{{\triangle}\vec{d}}{\triangle{t}}[/tex]
 
Last edited:

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