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OpenStudy (anonymous):
What is the approximate weight of a 20-kg cannonball on earth? A. 2 N B. 20 N C. 200 N D. 2000 N
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OpenStudy (anonymous):
medal....
OpenStudy (anonymous):
weight = force = mass * acceleration
OpenStudy (anonymous):
mass* gravity =20*9.81=196.2 N ..... but to make the problem easy gravity=10.. so 10*20=200 N
OpenStudy (anonymous):
thxs:)
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