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A passer throws a spiraling football to a receiver. Is its angular momentum constant, or nearly so? Distinguish between the cases in which the football wobbles and when it does not.

A passer throws a spiraling football to a receiver. Is its angular momentum constant, or nearly so? Distinguish between the cases in which the football wobbles and when it does not.

Grade:11

1 Answers

Aditi Chauhan
askIITians Faculty 396 Points
8 years ago
The football will wobble if its angular momentum gets changed by the action of external forces. To avoid this wobbling, the passer gives initial angular momentum to the football, and the presence of this initial angular momentum ensures that any angular momentum due to external forces does not wobbles the ball and changes its total angular momentum during the course of its flight.
Therefore the ball reaches the catcher with nearly same orientation.

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