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1.5 Forces

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Question 118

A motorboat is traveling in a straight line across a calm lake. Its propeller provides a forward thrust force on the boat. A resistive force of equal magnitude acts in the opposite direction due to water drag. Which statement describes the motion of the boat?

A

The boat changes direction.

B

The boat moves at a constant speed.

C

The boat slows down.

D

The boat speeds up.

Markscheme

1.5 Forces Questions

  1. IGCSE
  2. /Physics
  3. /1.5 Forces

245 exam-style questions on CIE IGCSE Physics 1.5 Forces, covering 1.5.1a Forces, resultant force and motion, 1.5.1b Load–extension graphs and the spring constant, 1.5.1c Friction and drag, 1.5.1d Force, mass and acceleration, 1.5.1e Motion in a circular path, 1.5.2a Moment of a force, 1.5.2b Principle of moments and equilibrium, and 1.5.3 Centre of gravity and stability. Each one has a worked solution and a mark scheme showing where the marks go.

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