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Unformatted text preview: madding (cmm3632) – HW06 – markert – (56475) 1 This print-out should have 22 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 (part 1 of 2) 10.0 points A rock of mass m is thrown horizontally off a building from a height h . The speed of the rock as it leaves the thrower’s hand at the edge of the building is v as shown. v h Δ x How much time does it take the rock to travel from the edge of the building to the ground? 1. t = hv g 2. t = radicalBigg 2 h g 3. t = radicalbig hv 4. t = 2 h g 5. t = h v 002 (part 2 of 2) 10.0 points What is the kinetic energy of the rock just before it hits the ground? 1. K f = 1 2 mv 2- mg h 2. K f = mg h 3. K f = 1 2 mv 2 4. K f = mg h- 1 2 mv 2 5. K f = 1 2 mv 2 + mg h 003 (part 1 of 4) 10.0 points A bead slides starting from rest at position O on a frictionless wire. The gravitation field is in the- y direction. x y Y T S O At which position(s) will the speed of the bead have a maximum value? 1. Points Y and S . 2. Point S . 3. Point T . 4. Point Y . 5. The bead remains stationary at point O . 004 (part 2 of 4) 10.0 points At which position(s) will the magnitude of the acceleration in the x direction of the bead have a maximum value? 1. Point Y . 2. Point S . 3. Point O . 4. Points Y and S . 5. Point T . 005 (part 3 of 4) 10.0 points At which position(s) will the speed of the bead have a minimum value?...
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