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(Solved): You throw a rock straight up into the air. Ignoring air resistance, is the magnitude of the rock's a ...



You throw a rock straight up into the air. Ignoring air resistance, is the magnitude of the rock's acceleration greater than

g

, equal to

g

, less than

g

or zero at each of the following moments? At each moment, what is the sign of the acceleration (positive or negative?) Answer both questions for each part below (a) ( 2 points) Immediately after being released from your hand. Magnitude:

a=ga>gaa=ga>g??a=g?a>9aa=g?a>g?a=ga>g??a a=g a>g Sign: a pasitive ? a is zero ? a negativea a=g ? a>g Sign: a positive a is zero ? a negative (e) (2 points) Immediately before returning to your hand. Magnitude: a a=g a>g Sign: a pasitive ? a is zero ? a negativea ? a=g ? a>9 Sign: a positive a is zero a negative (d) (2 points) Half way between the highest point and the point where you released it (on the way down). Magnitude: a a=g ? a>g Sign: a positive a is zero ? a negative (e) (2 points) Immediately before returning to your hand. Magnitude: a a=g a>g Sign: a pasitive ? a is zero ? a negativea a=g a>g Sign: a positive a is zero ? a negative (c) (2 points) Half way between the highest point and the point where you released it (on the way up). Magnitude: a ? a=g ? a>9 Sign: a positive a is zero a negative (d) (2 points) Half way between the highest point and the point where you released it (on the way down). Magnitude: a a=g ? a>g Sign: a positive a is zero ? a negative (e) (2 points) Immediately before returning to your hand. Magnitude: a a=g a>g Sign: a pasitive ? a is zero ? a negativea a=g a>g Sign: a positive a is zero a negative (b) ( 2 points) At the highest point of the motion. Magnitude: a a=g a>g Sign: a positive a is zero ? a negative (c) (2 points) Half way between the highest point and the point where you released it (on the way up). Magnitude: a ? a=g ? a>9 Sign: a positive a is zero a negative (d) (2 points) Half way between the highest point and the point where you released it (on the way down). Magnitude: a a=g ? a>g Sign: a positive a is zero ? a negative (e) (2 points) Immediately before returning to your hand. Magnitude: a a=g a>g Sign: a pasitive ? a is zero ? a negative


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