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Motion

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Question 161

A metal ball is released from rest from a high platform on Earth. Air resistance is negligible.

What is its speed when it has fallen 45 m?

(Take the acceleration of free fall to be g=9.81 m s−2g = 9.81\text{ m s}^{-2}g=9.81 m s−2.)

A

15 m s−115\text{ m s}^{-1}15 m s−1

B

21 m s−121\text{ m s}^{-1}21 m s−1

C

30 m s−130\text{ m s}^{-1}30 m s−1

D

44 m s−144\text{ m s}^{-1}44 m s−1

Markscheme

Motion Questions

  1. IGCSE
  2. /Physics
  3. /Motion

204 exam-style questions on CIE IGCSE Physics Motion, covering Motion. Each one has a worked solution and a mark scheme showing where the marks go.

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