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Frictional Starting Force (ME-K-FS)

Frictional Starting Force (ME-K-FS)



Shows that static friction is much larger than kinetic friction.

LAB EQUIPMENT

1.  Special 4 x 4 block w/ hook
2.  2  2000 g pan balance masses
3.  2000g dial spring scale
4.  Special smooth-surface board “A” (plastic coated surface)

Suggestion:  ME-K-SK also shows this concept


  • Description

    Product Description

    DIRECTIONS

    1.  Place the block on the long board and put the masses on the block.
    2.  Attach the spring scale, pull very slowly, noting the maximum reading on the scale.
    3.  Keep pulling the block at constant velocity & note that the scale reading is less than it the noted maximum to overcome static friction.