YeoItzJenny56301 YeoItzJenny56301
  • 08-05-2024
  • Physics
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If a small disc is projected on a horizontal floor with a speed u, and the coefficient of friction between the disc and floor varies, what happens to the disc's speed as it moves?
a) It increases
b) It decreases
c) It remains constant
d) It varies unpredictably

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