An object thrown into the space either horizontally or at an acute angle under the action of gravity is called a projectile. Name the two forces which act on a projectile.
i) Gravitational force
ii) Air Resistance
iii)Initial velocity
iv)Spin
Your grandmother feels that she has reduced her upper body flexibility and therefore she wants to test herself. Which test would you suggest to her?
Round-Robin Tournament is of two types. Name them and give one major difference between them.