Max Acceleration in Linearly Varying Speed: Solving for a0 and K

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SUMMARY

The discussion focuses on determining the maximum acceleration of a vehicle with linearly varying acceleration as it speeds up from rest to 50 mph in 35 seconds and 65 mph in 95 seconds. The acceleration function is defined as a(v) = a0 + Kv, where a0 is the initial acceleration and K is a constant. The participants emphasize the importance of correctly applying the relationship between acceleration and velocity, specifically the equation dv/dt = a0 + Kv, to solve for the maximum acceleration in both scenarios.

PREREQUISITES
  • Understanding of kinematics and acceleration concepts
  • Familiarity with linear equations and their applications in physics
  • Knowledge of calculus, particularly differentiation
  • Ability to manipulate and solve algebraic equations
NEXT STEPS
  • Study the derivation of the acceleration function a(v) = a0 + Kv
  • Learn how to apply kinematic equations to varying acceleration scenarios
  • Explore the concept of maximum acceleration in physics
  • Investigate real-world applications of linear acceleration in vehicle dynamics
USEFUL FOR

Students studying physics, particularly those focusing on kinematics and dynamics, as well as educators seeking to explain concepts of acceleration and motion in vehicles.

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Homework Statement


The driver of a vehicle on a level road determined that she could increase her speed from rest to 50 mph in 35 sec and from rest to 65 mph in 95 sec. Assume that acceleration varies linearly with speed (with a non zero intercept). Determine the max acceleration in each case.


Homework Equations



a(v) = a0 + Kv

The Attempt at a Solution



a(0) = a0
a(vmax) = amax
 
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Ok, so a(v)=dv/dt. You forgot that equation. Can you solve dv/dt=a0+Kv?
 

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