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A 300 kg boulder is dragged 8 m across level groundwith a chain that makes an angle of 37° with the horizontal. If the applied
1. 3 answers
2. 663 views
A 30 kg sled is pulled at constant speed with a horizontal rope for a distance of 450 m. The coefficient of friction is 0.15.
1. 4 answers
2. 1,101 views