Problem 32.2
(I) Suppose that you want to take a photograph of yourselfas you look at your image in a mirror 2.8 m away. For whatdistance should the camera lens be focused?
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• Findpositionwithnoacceleration:x=x +vt 0 • Findvelocitywithconstantacceleration:v=v +at 0 2 • Findpositionwithacceleration:x=x +v t+0at 0 o x b0itself: x=x 0+v 0+½at 2 x 0=x–v t0–½at 2 o v b0itself: x=x0+v 0+½at 2 2 x–x0–½at =v t0 2 v 0=(x–x 0½at )/t o abyitself:
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Chapter 32, Problem 32.2 is Solved
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