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anonymous
 4 years ago
How to Find out;
the Resultant Displacement & the Direction of the resultant
(with respect to +ve xaxix)
If a Car travels 200 km due EAST and then 150 km 60 (degrees) North Of East.
anonymous
 4 years ago
How to Find out; the Resultant Displacement & the Direction of the resultant (with respect to +ve xaxix) If a Car travels 200 km due EAST and then 150 km 60 (degrees) North Of East.

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TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.2Draw a vector diagram:dw:1329594315669:dwit looks Law of cosines will take care of this in a flash\[\large d^2=a^2+b^22ab\cos D \]where D is the angle that subtends side d (which is the displacement, and a and b are the other sides of the triangle

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.2knowing that you can then find the angle of direction (beta) by using the law of cosines againdw:1329594764737:dw

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.2I should just call the direction angle B, sorry*

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.2dw:1329594887617:dw\[b^2=d^2+a^22da\cos B\]solve for B to get the angle

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so angle D must be 120....Right.. ?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0d= 304.138 & 25.28 degrees Thanks!

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.2nice job :D welcome!
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