An ice skater is traveling in a straight, horizontal line on the ice with a velocity of v = 7.5 m/s in the positive x-direction. The coefficient of kinetic friction between the skates and the ice is μk = 0.23.  v=7.5 m/s uk= 0.23   Using the expression for normal force,write an expression for the skaters acceleration in the x-direction, a

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Q: cord pulls an 7.0 kg block across a horizontal floor at constant velocity.The coefficient of kinetic…

A: Given values:- Mass of the block,(m)=7 kg ----(1) Coefficient of the kinetic friction,(μk)=0.21…

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A: The vertical displacement of stone is   y=y_0+v_0t-(1/2)gt^2  5=25t-(1/2)(9.80)t^2 5=25t-4.90t^2 On…

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Q: We start with some review problems A crate of mass 34.2 kg rests on a level surface, with a…

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Q: stly, physicist like to express friction forces in terms of the efficient of friction µ, so that = µ…

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A: Correct option is (b) 21.8 °

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Q: A 4.4 kg block located on a horizontal floor is pulled by a cord that exerts a force F = 10 N at an…

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Q: A crate is pulled using a rope angled at 45° upwards from the horizontal. If the crate slides along…

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