How Long Does It Take to Travel 144 km East at 48 km/h?

AI Thread Summary
To determine the time it takes to travel 144 km at an average velocity of 48 km/h, the formula used is time equals distance divided by speed. Rearranging the equation gives delta t = delta x / Vavg. Substituting the values, delta t equals 144 km divided by 48 km/h, resulting in 3 hours. It's important to note that both velocity and displacement are vector quantities, which means direction should be considered. Therefore, Simpson will take 3 hours to drive 144 km east.
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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 don't know how
 
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Umm. Isn't this just a case of Speed = \frac {Distance} {time}
:bugeye:

ie... re-arranging this equation.
 
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But make sure to include direction, as velocity and displacement are vectors.

\vec{v}=\frac{{\triangle}\vec{d}}{\triangle{t}}
 
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