Using the diagram above, the coefficient of kinetic friction for copper is _ This coefficient _ apply to all similar copper surfaces.
o. (Your answer should be given to the nearest thousandths.)
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Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?