76685
AssignmentMultiple Select

Friction

Question 76685 • Mad 2017 Phy Sci B -33 SS

Ivan pushes a dresser with full drawers across his carpeted floor. What could Ivan do to reduce the amount of friction between the dresser and the floor? Select two options.place some smooth tiles under the dresserremove or turn off sources of windmove the dresser at a slower speedremove the drawers from the dresser

Answer
A
place some smooth tiles under the dresser
B
remove or turn off sources of wind
C
move the dresser at a slower speed
D
remove the drawers from the dresser

Explanation

Friction depends on how rough the contacting surfaces are and how strongly they press together. Smooth tiles make the surface under the dresser smoother, reducing friction; removing the drawers makes the dresser lighter, reducing the force pressing it against the floor. Wind does not affect the contact friction, and moving more slowly does not generally reduce it.

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