Time of flight

Three projectiles are launched from the same height. Each reaches the same maximum height before returning to the initial height. Projectile 3 (blue) has the largest range, projectile 2 (green) and the 2nd largest, and projectile 1 (red) has the smallest range. Neglect air resistance. Rank the three from largest to smallest according to:

Their time of flight

  1. 3>2>1
  2. 1>2>3
  3. 1=2=3
  4. Not enough information is given to decide
















Their initial vertical component of velocity

  1. 3>2>1
  2. 1>2>3
  3. 1=2=3
  4. Not enough information is given to decide
















Their initial speed

  1. 3>2>1
  2. 1>2>3
  3. 1=2=3
  4. Not enough information is given to decide