Which of the following remains constant for a projectile fired from the earth ?

Which of the following remains constant for a projectile fired from the earth ?
  1. Momentum
  2. Vertical component of velocity
  3. Kinetic energy
  4. Horizontal component of velocity

Solution

There is no acceleration in the horizontal direction during projectile motion and only gravitational acceleration \(g\) works in vertically downward direction. Hence, horizontal component of velocity remains constant.

Asked in: AP EAMCET 2020 (21 Sep Shift 2)

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