Pls state with reason whether work done is pos,neg. or 0 in each case. 2 teams r playing tug-of war..
a. work done by the winning team on the losing team.
b. work done by both losing team on the winnig team
c. work done by the ground on the losing team.
d. total external work on the 2 teams.
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UP 0 DOWN 0 0 0
