Kinematics - Velocity from Acceleration

Kinematics - Velocity from Acceleration

TGM Original Questions

A particle starts from rest at \(O\) and moves in a straight line with its acceleration, \(a\,ms^{-2}\), given by the equation \(a = 6 - 3t\), where \(t\) seconds is the time after leaving a fixed point \(O\). The particle comes to instantaneous rest at a point \(A\). Find

  1. the time taken for the particle to reach \(A\),
  2. The distance \(OA\)
  3. The maximum speed of the particle during its motion from \(O\) to \(A\).

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Answer:(a) \(4\text{ s}\); (b) \(16\text{ m}\); (c) \(6\text{ m s}^{-1}\)

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