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JAMB Physics 2010 Question 4

Question 4

Motion

A stone and a feather are dropped from the same height above the earth surface. Ignoring air resistance, which of the following is correct?

  1. A.The stone and feather will both reach the ground at the same time
  2. B.The stone will reach the ground first
  3. C.The feather will reach the ground first
  4. D.The feather will be blown away by the wind while stone will drop steadily
Show the answer and explanation

Answer: A (The stone and feather will both reach the ground at the same time)

Explanation

Without air resistance every body falls with the same acceleration g, whatever its mass, so both land together.