3 years ago

To move a heavy couch across a carpeted floor what could be used to decrease the frictional force

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2 answers:

vitfil [10]3 years ago

7 0

Use a piece of cardboard

aleksklad [387]3 years ago

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Put a lubricant between the surface of the object and the floor. use round objects, like pencils, to decrease the friction and push the refrigerator over the pencils

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The average speed of the car is calculated as;

$v' = \frac{70(3) - 20(2)}{3-2} \\\\v' = 170 \ mph$

Therefore, the average speed of the car is 170 mph.

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