HW06_sol_B.pdf - PHYS1111A University Physics I Homework 6 Solution to Part B 1(a The angle 1 is given by 1 tan 1 ux uy After reflection vx ux vy u y 2

# HW06_sol_B.pdf - PHYS1111A University Physics I Homework 6...

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PHYS1111A University Physics I Homework 6 Solution to Part B 1. (a) The angle 1 is given by 1 1 tan x y u u After reflection, , x x y y v u v u   , 1 1 2 1 tan tan x x y y v u u v (b) Initial and final momentum: 1 2 ˆ ˆ sin cos ˆ ˆ sin cos i f p mu i j p mu i j v u Change in momentum: ˆ 2 cos f i p p p mu j 2. Let v be the final velocity. By conservation of momentum, 1 1 2 2 1 2 mu m u m m v

Unformatted text preview:          1 ˆ ˆ ˆ ˆ 1 3 2 2 2 1 2 ˆ 7 3 7 ˆ m s 3 i j i j v i v v i           3. Position of the centre of mass:       ˆ ˆ ˆ ˆ ˆ 1 5 2 4 3 2 1 2 3 1 ˆ ˆ 5 6 i i i m r R m i i j i j i j               ...
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