Physics 12: Acceleration and Distance Problem Solution

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SUMMARY

The discussion focuses on solving a physics problem involving a car that accelerates from rest to a velocity of 80 km/h in 6 seconds. The acceleration is calculated using the formula a = dv / dt, resulting in an acceleration of approximately 3.70 m/s². The distance traveled during this time is determined using the formula s = (a/2) * t², yielding a distance of 66.67 meters. The conversion from km/h to m/s is clarified as dividing by 3.6, confirming that 80 km/h equals 22.22 m/s.

PREREQUISITES
  • Understanding of basic kinematics
  • Familiarity with unit conversion (km/h to m/s)
  • Knowledge of acceleration and distance formulas
  • Basic algebra skills for solving equations
NEXT STEPS
  • Study the concept of acceleration in physics
  • Learn about kinematic equations for uniformly accelerated motion
  • Practice unit conversions between different measurement systems
  • Explore online resources or textbooks for additional physics formulas
USEFUL FOR

Students studying physics, particularly those tackling kinematics problems, as well as educators seeking to clarify concepts related to acceleration and distance calculations.

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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