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3 Mechanics

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Question 27

At time t t\,t seconds a particle P P\,P has position vector r=[(t2+5t−2)i+(t3+2t2)j]\mathbf{r} = \left[(t^2 + 5t - 2)\mathbf{i} + (t^3 + 2t^2)\mathbf{j}\right]r=[(t2+5t−2)i+(t3+2t2)j] m.

a.

Find the position vector of P P\,P when t=2t = 2t=2.

[2]
b.

Find the velocity of P P\,P when t=3t = 3t=3.

[3]
Markscheme

3 Mechanics Questions

  1. A Level
  2. /Maths
  3. /3 Mechanics

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