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Variable Acceleration

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Question 45

A particle P P\,P travels along a straight line through a point O O\,O so that at time t t\,t s after passing through O O\,O its displacement from O O\,O is x x\,x m, where x=t4−8t3+24t2+30tx = t^4 - 8t^3 + 24t^2 + 30tx=t4−8t3+24t2+30t

a.

Find the initial velocity of $P.

[3]
b.

Find the value of t t\,t for which P P\,P has zero acceleration.

[2]
Markscheme

Variable Acceleration Questions

  1. A Level
  2. /Maths
  3. /Variable Acceleration

308 exam-style questions on Edexcel A Level Maths Variable Acceleration, covering 11.1 Functions of Time, 11.2 Using Differentiation, 11.3 Maxima and Minima Problems, 11.4 Using Integration, and 11.5 Constant Acceleration Formulae. Each one has a worked solution and a mark scheme showing where the marks go.

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