the work done by friction is most nearly

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a 2kg mass moving at 10m/s slows to a speed of 4m/s while sliding across a rough horizontal surface. the work done by friction is most nearly

A. 116j

B -116j

C 84j

D -84j

E -16j

Jan 5th, 2015



v2 = 4m/s

=1/2m(v12 - vo2)




your answer is

C . 84j

best my answer thanks

Jan 5th, 2015

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