Thursday, October 27, 2011

Kinematics Problem Solver - Example 1

Question: A car, moving at constant speed of 50 m/s, decelerates uniformly before it stops. The time taken to stop is 2.5 seconds. What is the distance travelled by car when stopping?

Answer:
From the question, we know that

  • Initial velocity = 100 ms^-1. (Given)
  • Final velocity = 0 ms^-1. (Inferred. "It stops.")
  • Time = 2.5 s. (Given)
  • Displacement = ?

Neatly done.
Now, let's enter these information into the program as follow.



Great.

The program solved for you. The answer is 62.5m.

Extra: The program even solved for other information(like acceleration and average velocity) using the given points.

Check out the example 2 for more!

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