Ncert Exercises & Solutions

4.19. A football is kicked into the air vertically upwards. What is its

a) acceleration

b) velocity at the highest point

Hint: Acceleration of football is downward throughout the motion.

Step 1: Answer both of the parts.

(a) Consider the adjacent diagram in which a football is kicked into the air vertically upwards. The acceleration of football will always be vertical downward and is equal to g.

(b) When the football reaches the highest point velocity will be zero as it is continuously retarded by acceleration due to gravity g.

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