3 years ago

HELP!!

Physics

1 answer:

QveST [7]3 years ago

6 0

Answer:

Total displacement 155 m

Explanation:

From the question, the formula to apply will be that of cosine rule where:

$c=\sqrt{a^2+b^2-2ab*cosC}$

where

a= 43 m , b=130m and c =? , <C=28° + 90° =118°

Substituting values in the equation as;

$c=\sqrt{43^2+130^2-2*43*130*cos118}$

$c=\sqrt{1849+16900-11180*-0.46947} \\\\c=\sqrt{1849+16900+5249} \\\\c=\sqrt{23998} \\\\\\c=155m$

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