A car starts from rest at the point A and moves in a straight line with constant acceleration for 20 seconds until it reaches the point B. The speed of the car at B is 30 m s. Calculate (a) the acceleration of the car, (b) the speed of the car as it passes the point C, where C is between A and B and AC = 40 m. (OCR)

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Title: Accelerated Journey: Unveiling Car Dynamic
s: A car starts from rest at the point A and moves in a straight line with constant acceleration for 20 seconds until it reaches the point B….


Introduction: Embarking on a cinematic journey, a car springs to life from rest at point A, hurtling forward with unwavering acceleration. This numerical exploration delves into the intricacies of the car’s dynamics during a 20-second acceleration phase, culminating at point B with a speed of 30 m/s. The enigma extends to unraveling the car’s acceleration, predicting its speed at an intermediate point C, positioned between A and B, with AC measuring a modest 40 meters.

Scenario Overview: The narrative is set against the backdrop of a car’s relentless acceleration, revealing the nuances of its changing speed and position during the specified time interval.

Objectives:

  1. Acceleration Revelation (a): Illuminate the magnitude of the car’s acceleration during the 20-second acceleration phase.
  2. Intermediate Speed Exploration (b): Predict the car’s speed as it gracefully glides through point C, threading the distance between A and B.

Significance: This exploration holds significance in deciphering the underlying physics of accelerated motion, unraveling the car’s response to constant acceleration, and providing insights into its changing dynamics.

Exploration Focus: The core of this exploration centers on understanding how constant acceleration shapes the car’s speed profile, illuminating the acceleration magnitude and the intermediate speed at point C.

Dynamics of Acceleration: Analyzing the interplay of time, acceleration, and speed, the exploration navigates through the foundational principles of accelerated motion.

Mathematical Calculations: The journey involves mathematical calculations, potentially utilizing equations of motion and acceleration formulas, to extract the precise values of the car’s acceleration and speed at point C.

Visualization: Graphical representation may enhance the comprehension of the car’s acceleration journey, offering a visual narrative of its changing speed over time.

Douglas Quadling Mechanics1 Miscellaneous Exercise1 Q1

Douglas Quadling Mechanics1 Miscellaneous Exercise1 Q1 A car starts from rest at the point A and moves in a straight line with constant acceleration for 20 seconds until it reaches the point B.

Conclusion:

A car starts from rest at the point A and moves in a straight line with constant acceleration for 20 seconds until it reaches the point B….

As we traverse the numerical landscape, the exploration promises to demystify the car’s accelerated journey, revealing not only the acceleration experienced during the initial 20 seconds but also predicting its speed at the intermediate checkpoint C. The numerical quest unfolds, painting a vivid picture of the car’s dynamic response to constant acceleration.

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