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OpenStudy (anonymous):
Draw a Free-Body-Diagram of a 20 kilogram rock in freefall. Calculate the weight of the rock.
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OpenStudy (anonymous):
|dw:1324498567648:dw|
OpenStudy (anonymous):
Um... Can you elaborate a little bit?
OpenStudy (hunus):
Are we assuming air resistance or is this ideal?
OpenStudy (anonymous):
Um, I think no air resistance because its in freefall
OpenStudy (hunus):
|dw:1324501185793:dw| The mass of the rock is 20 kg and the acceleration due to gravity is 9.8 m/s/s. Thus, the weight of the rock is (20kg)(9.8m/s/s)=196 N
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OpenStudy (anonymous):
Okay, thank you
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