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

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SUMMARY

To calculate the time required for Simpson to travel 144 km east at an average velocity of 48.0 km/h, the formula used is Speed = Distance / Time. Rearranging this equation gives Time = Distance / Speed. Thus, delta t can be calculated as delta t = 144 km / 48.0 km/h, resulting in a travel time of 3 hours. It is essential to consider direction, as both velocity and displacement are vector quantities.

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  • Familiarity with the formula for speed, distance, and time.
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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 don't know how
 
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Umm. Isn't this just a case of [tex]Speed = \frac {Distance} {time}[/tex]
:bugeye:

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

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