A baseball is thrown vertically into the air. The acceleration of the ball at its highest point is: Group of answer choiceszerog, upg, down2g, up2g, down
Question
A baseball is thrown vertically into the air. The acceleration of the ball at its highest point is: Group of answer choiceszerog, upg, down2g, up2g, down
Solution
The acceleration of the ball at its highest point is g, down.
Here's why:
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When the baseball is thrown vertically into the air, it is acted upon by the force of gravity. This force causes the ball to decelerate on its way up, come to a stop at its highest point, and then accelerate on its way down.
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The acceleration due to gravity is approximately 9.8 m/s² on the surface of the Earth. This is often rounded to 10 m/s² for simplicity in calculations, and is represented by the symbol 'g'.
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The direction of this acceleration is always downwards - towards the center of the Earth.
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Therefore, even at the highest point of its trajectory, the baseball is still being accelerated downwards by gravity. The fact that it is momentarily stationary (its velocity is zero) does not affect this.
So, the correct answer is 'g, down'.
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