Edexcel M4 2002 January — Question 1

Exam BoardEdexcel
ModuleM4 (Mechanics 4)
Year2002
SessionJanuary
TopicVectors Introduction & 2D
  1. A river of width 40 m flows with uniform and constant speed between straight banks. A swimmer crosses as quickly as possible and takes 30 s to reach the other side. She is carried 25 m downstream.
Find
  1. the speed of the river,
  2. the speed of the swimmer relative to the water.
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