A football rolls through the ground. The path followed by center of mass of football is:

linear

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circular

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rotational

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all the above

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Solution

The correct option is A linear
When a football rolls through the ground, the path followed by center of mass of ball is linear as the center of mass remains always at a fixed height from the ground when the football rolls and moves in a straight line if the ball does not changes its direction of rolling which is assumed in this case.
The correct option is A.

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Question 26
Following are the choices of games of 40 students of Class VI:
Football, cricket, football, kho-kho, hockey, cricket, hockey, kho-kho, tennis, tennis, cricket, football, football, hockey, kho-kho, football, cricket, tennis, football, hockey, kho-kho, football, cricket, cricket, football, hockey, kho-kho, tennis, football, hockey, cricket, football, hockey, cricket, football, kho-kho, football, cricket, hockey, football.
(a) Arrange the choices of games in a table using tally marks.
(b) which game is liked by most of the students?
(c) which game is liked by minimum number of students?

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