Questions

Three projectiles are launched from the same level on flat ground. Each reaches the same maximum height before returning to the ground, but projectile 3 (in blue) has the largest range, followed by projectile 2 (in green). Projectile 1 has the smallest range (in red).

Neglect air resistance. Rank the three from largest to smallest according to:

Their time of flight

  1. 3>2>1 (7/31) (23%)
  2. 1>2>3 (0/31) (0%)
  3. 1=2=3 (23/31) (74%)
  4. Not enough information is given to decide (1/31) (3%)
















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 (20/33) (64%)
  2. 1>2>3 (3/33) (10%)
  3. 1=2=3 (8/33) (26%)
  4. Not enough information is given to decide (0/33) (0%)