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MMLU / A stone is thrown horizontally with an initial speed of 30 m/s from a bridge.…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A stone is thrown horizontally with an initial speed of 30 m/s from a bridge. Find the stone's total speed when it enters the water 4 seconds later, assuming that air resistance is negligible.

choices

  1. 30 m/s
  2. 40 m/s
  3. 50 m/s
  4. 60 m/s

subject

high_school_physics

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Source and history

Official source

initial import