lecture10_clicker

# lecture10_clicker - A 5 kg object slides on a rough table...

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A 5 kg object slides on a rough table with coefficient of kinetic friction µ k = 0.1. The initial velocity of the object is 2 m/s. Find (a) the initial kinetic energy of the object A. 2 joules B. 5 joules C. 10 joules D. 20 joules E. 50 joules KE = ½ m v 2 = ½ (5) (2) 2 = 10 J

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A 5 kg object slides on a rough table with coefficient of kinetic friction µ k = 0.1. The initial velocity of the object is 2 m/s. Find (a) the initial kinetic energy of the object, and (b) the distance it travels before coming to rest. (use g = 10 m/s 2 ) A. 1 meter B. 2 meters C. 5 meters D. 10 meters E. 20 meters net f i WK E K EK E = −= Friction f k = µ k
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lecture10_clicker - A 5 kg object slides on a rough table...

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