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3 Mechanics

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Question 155

A particle has velocity v=(12−2t2) m s−1v=(12-2t^2)\text{ m s}^{-1}v=(12−2t2) m s−1 at time t t\,t seconds, where t≥0t\geq0t≥0. At t=0t=0t=0 the particle is at OOO.

a.

Find the distance travelled in the first second.

[2]
b.

Find the time at which the particle changes direction.

[2]
c.

Find the next time at which the particle returns to OOO.

[3]
Markscheme

3 Mechanics Questions

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

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