Answered

Westonci.ca offers quick and accurate answers to your questions. Join our community and get the insights you need today. Join our platform to connect with experts ready to provide precise answers to your questions in different areas. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

An ant travels 2.78 cm (West) and then turns and travels 6.25 cm (South 40 degrees East). What is the ant's total displacement?

Sagot :

luana
[tex]From\ cosine\ theorem:\\\\ c^2=a^2+b^2-2abcos(\angle between\ a\ and\ b)\\\\ a=2,78\\b=6,25\\ \angle between\ a\ and\ b=90+50=140^{\circ}\\\\ c^2=2,78^2+6,25^2-2*2,78*6,25cos(140^{\circ})\\\\ c^2=7,7284+39,0625-34,75*(-0,77)\\\\c^2=46,7909+26,7575\\\\c^2=735484\\\\c=8,58cm\\\\Total\ displacement\ is\ equal\ to\ 8,58cm.[/tex]
View image luana
View image luana