The Position of Car a and Car B, Starting Out

question 212

Multiple Choice

The position of car A and car B, starting out side by side and traveling along a straight road, is given by s = f(t) and s = g(t) , respectively, where s is measured in feet and t is measured in seconds (see the accompanying figure) . ​ ​
Which car is traveling faster at t​₁, t​₂ and t​₃?
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• A) Cars are traveling at the same speed at t​₁, car B is traveling faster at t​₂, car A is traveling faster at t​₃
• B) Car A is traveling faster at , car B is traveling faster at t​₂, cars are traveling at the same speed at t​₃
• C) Car A is traveling faster at t​₁, car B is traveling faster at t​₂, car A is traveling faster at t​₃
• D) Car A is traveling faster at t​₁, cars are traveling at the same speed at t​₂, car B is traveling faster at t​₃

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Definitions:

Rate-Limiting Step

The slowest step in a chemical reaction sequence which determines the overall reaction rate.

Reaction-Energy Diagram

A reaction-energy diagram graphically shows the energy changes that occur during a chemical reaction, from reactants to products, highlighting the activation energy and overall energy release or absorption.

Highest-Energy Structure

The conformation or arrangement of atoms in a molecule that has the highest potential energy, often least stable, compared to other conformations.

Molecular Collision

The process in which two or more particles (atoms, ions, molecules) come into close enough proximity to affect each other's trajectories or engage in a chemical reaction.