Crazy Skills in Football

In the following example,try to identify the number of times the velocity of the ball changes: "A football player kicks a football to another player of his team who kicks the football towards the goal. The goalkeeper of the opposite team collects the football and kicks it towards a player of his own team"? Also identify the agent supplying the force in each case.

A player kicks a football of mass 0.5 kg and the football begins to move with a velocity of 10 m/s . If the contact between the leg and the football lasts for (1)/(50) sec , then the force acted on the football should be

In a group of children, 35 play football out of which 20 play football only, 22 play hockey, 25 play cricket out of which 11 play cricket only. Out of these 7 play cricket and football but not hockey, 3 play football and hockey but not cricket and 12 play football and cricket both. How many play all the three games ? How many play cricket and hockey but not football, how many play hockey only? What is the total number of children in the group?

Which one of the following is not a football tournament?

If bat is racket, racket is football, football is shuttle, shuttle is ludo and ludo is carrom, what is cricket played with? 1) Racket 2) Football 3) Bat 4) Shuttle 5) None of these