yvette2003
27.11.2019 •
Physics
Sledge (including load) weighs 5000 n. it is pulled on level snow by a dog team exerting ahorizontal force on it. the coefficient of kinetic friction between sledge and snow is 0.05. howmuch work is done by the dog team pulling the sledge 1000 m at constant speed?
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Ответ:
2.5 x 10^{5} J
Explanation:
weight = 5,000 N
coefficient of friction = 0.05
distance = 1000 m
how much work is done by the dogs pulling the sledge
work done = force x coefficient of friction x distance
work done = 5000 x 0.05 x 1000 = 2.5 x 10^{5} J
Ответ:
e) none of the above answers are correct