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2 Motion and forces

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Question 8

As a speedboat approaches a harbour entrance, its velocity falls uniformly from +17 m/s to +7.0 m/s, during which its displacement is +40 m.

Use the equation v2−u2=2axv^2-u^2=2axv2−u2=2ax.

What is the acceleration of the speedboat?

[1]
A

+3.0 m/s2+3.0\ \mathrm{m/s^2}+3.0 m/s2

B

+6.0 m/s2+6.0\ \mathrm{m/s^2}+6.0 m/s2

C

−3.0 m/s2-3.0\ \mathrm{m/s^2}−3.0 m/s2

D

−6.0 m/s2-6.0\ \mathrm{m/s^2}−6.0 m/s2

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2 Motion and forces Questions

  1. GCSE
  2. /Physics
  3. /2 Motion and forces

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