Physics 12: Acceleration and Distance Problem Solution

AI Thread Summary
A car accelerates from rest to 80 km/h in 6 seconds, prompting questions about calculating acceleration and distance traveled. The conversion of 80 km/h to meters per second is confirmed as 22.22 m/s, using the factor of dividing by 3.6. The acceleration can be calculated using the formula a = dv/dt. To find the distance traveled, the formula s = (a/2) * t^2 is applicable, given the car starts from rest. Concerns are raised about the lack of reference materials in the online course.
Shakers
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Homework Statement



a car accelerates in a straight line from rest ot a velocity of 80km/h in a time of 6s

Homework Equations



what is the acceleration of the car?
how far did the car travel in this time?

The Attempt at a Solution


Now I am trying to convert 80km/h to m/s, so that equals 22.22m/s. I am doing this as an online course and I can't find a formula? Can someone help me please?
 
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1km/hour = 1000m/3600secs = 1/3.6m / s. This means, that to get m/s from km/hour, you just need to divide it by 3.6.
Acceleration a = dv / dt, both of which you know.
And as for how far did the car travel, s=(a/2)*t^2, since it's from resting. Those are the formulas you need.
 
Shakers said:

The Attempt at a Solution


Now I am trying to convert 80km/h to m/s, so that equals 22.22m/s. I am doing this as an online course and I can't find a formula? Can someone help me please?
The course does not provide any reference or study material containing formulas? Sounds like you are wasting your money, if you are paying.
 
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