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3 Mechanics

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Question 54

A runner is modelled as moving with constant acceleration. Her speed is 3 m s-1 at the start of a 20 m straight section and 7 m s-1 at the end.

a.

Find her acceleration.

[2]
b.

Find the time she takes to cover the section.

[2]
c.

State one condition under which the constant-acceleration model would be reasonable.

[1]
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3 Mechanics Questions

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

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