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img013 - \’l 0/0 PHY 2053 — Discussion Group Quiz 7...

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Unformatted text preview: \’l 0/0 PHY 2053 —- Discussion Group Quiz 7 Warm. h: UFID: W 1. A block of mass m1 is released from rest at a height h 1 above the level of the horizontal surface where another mass m 2 is resting as shown above. There is no 1 friction between the blocks and the surface they are sliding on and effects due to {a rotation of the objects may be ignored. a. Using conservation of energy, derive an expression that relates the height from which an object is released in the above configuration to its velocity when it reaches the horizontal portion of the surface. (2 points) b. Write down an equation which reflects the conservation of linear momentum as it pertains to this scenario. (2 points) c. Write down and equation that reflects the conservation of energy in this scenario provided that a collision between the blocks is fully elastig (2 points) d. Show that the height to which ml rises back up the surface after the collision is given by: (4 points) 0) m9“: \IZVhVFZ C) lflqul +1M‘WZV2L2 : ”/2 MRI; 1 M _,_ ____“ r + lama/”2 w = in / M: Van-:;ém_.y;:zl \JiL 1' —(\1.7C-—\12f) / b) PL; Pf * ~11» , ~-~—K_\ dd might + O :Jhfiww- + 'lzm2Vzpz+.mU§hz [BELL L m1V1L ‘ mNif + m1 Vzij \ (jflMflw— .. m‘h\+ \Mmflllif —.‘i1_m_ZV—2E2 h—L leL +0 : miVMC 'rmZsz \/ (“\— <Zhlzh1 MI" 2. ...
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