This is called in physics refraction phenomenon.
It occurs when light when the light passes from one medium with density d1 to another medium with density d2. The sight of the archer travel from air to deep into water & provokes a refraction.
Answer:
100N
Explanation:
m= 5kg
a= 20 m/s^2
F= ma = 5kg x 20 m/s^2 = 100kg m/s^2 = 100N
