Net work done with it and kinetic frictional force is zero

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Reference no: EM13668609

1) A 0.075 kg arrow is fired horizontally. The bow string exerts an average force of 65N on the arrow over a distance of 0.90m with what speed does the arrow leave the bow?

2) A 100kg crate is being pulled across a horizontal floor with a force P that makes an angle of 30 degrees above the horizontal. The coefficient of kinetic friction is 0.200. What must be the magnitude of P so that the net work done with it and kinetic frictional force is zero?

Reference no: EM13668609

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