A uniform plank of length 4.7 m and weight 221 n rests, Ask an Expert

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Q. An aerosol can of whipped cream is pressurized at 440kPa when it's refrigerated at 3 C. The can warns against temperature in excess of 50 C. What is the maximum safe pressure for the can?

Q. A uniform plank of length 4.7 m and weight 221 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support. To what distance x can a person who weighs 440 N walk on the overhanging part of the plank before it just begins to tip?

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Category:- Physics
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