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Solution 8.6b

From Mechanics

Revision as of 19:35, 14 April 2010 by Ian (Talk | contribs)
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Here we use

r=ut+21at 2+r0

According to the text

u=i+2j

and part a) gave

a=0.5ij

We assume the starting point is the origin so that r0=0.

At t=10+40=50 we obtain

r=(i+2j)50+21(a=0.5ij)50 2


The distance is the magnitude of this vector