WBCS.LIVE practice question

During the motion os a projectile fired from the earth surface, _________ .

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. it's kinetic energy remains constant
  2. its momentum remains constant
  3. vertical component of its velocity remains constant
  4. horizontal component of its velocity remains

Correct answer and explanation

Correct answer: vertical component of its velocity remains constant