Physics 203 Test 2.pdf - NAME Physics 203 Practice Test 2 1...

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NAME_______________________________ Physics 203 Practice Test 2 1) A 10kg block sits on a slope of 35 degrees with the horizontal without sliding. Draw a picture to describe the situation and label all forces acting on the block and only the block. Calculate the value of all of these forces. 2) You exert a constant force of 50N on a 10kg block sitting on a flat surface with a coefficient of static friction of .5 and a coefficient of kinetic friction of .4. Will the block move? If so, what will its accelerati on be once it’s moving? 3) A 2 kg block is pulled 10m up a slope by a force of 50N. How much work does this force do on the block? How much work does gravity do on the block? How much work does the normal force do on the block? What is the final velocity of the block after the 10m? 4) A skier starts from rest and skis down a slope a height of 100m before going off a jump of 30 degrees above the horizontal. What would the skier’s horizontal and vertical velocity be at the moment he leaves the slope?
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