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Your roof has started to leak due to a spring storm, so you go up on...

Your roof has started to leak due to a spring storm, so you go up on the roof to patch it. While working on the roof, that slants at 44.0 ? above the horizontal, you bump the can of patching compound (tar) that is sitting next to you and it starts to slide down the roof.The can and tar has a weight of 88.0 N .

If the cam starts 4.50 m from the lower edge of the roof, how fast will it be moving just as it reaches the edge of the roof ? The kinetic friction force on the can is 21.0 N ?.

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