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May 29, 2017

Instantaneous Acceleration

Let's discuss a problem useful for Physics Olympiad based on Instantaneous Acceleration.

The Problem:

Velocity-displacement curve of a particle moving in a straight line is as shown

velocity displacement curve

  • 2m/s2
  • 5 m/s2
  • 1 m/s2
  • Zero

Discussion:

Acceleration a=v dv/ds

From, the graph, we can see a=vtanθ

tanθ=1/4

Putting the values, we get acceleration a= 1m/s2

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