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Question about Action and Reaction Forces

Physics

Originais Teachy

Action and Reaction Forces

Medium

(Originais Teachy 2023) - Question Medium of Physics

During a soccer game, a player kicks the ball and it moves through the air after being kicked. By applying Newton's 3rd law (action and reaction) in this situation, it is possible to observe some forces acting on the ball. (a) Describe what these forces are and, for each one of them, identify the corresponding reaction force based on the principle of action and reaction. (b) Suppose the ball has a mass of 0.45 kg and the player applied a force of 90 N at the moment of the kick. Estimate the acceleration of the ball at the instant of the kick. (c) Based on the acceleration obtained in item (b), calculate the distance the ball would travel in 2 seconds of motion, considering that it starts from rest and disregarding air resistance and other forces that may influence its displacement.

Answer sheet:

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