Asked by Yusuf
A man walk 3km East and then 4km North what is his resultant displacement? Suppose he walk 3km and 4km 60(degree) North of East. What is the displacement?
Answers
Answered by
Steve
draw a diagram.
(a) Ever hear of a 3-4-5 right triangle?
(b) for this one, use the law of cosines to find the distance d:
d^2 = 3^2 + 4^2 - 2*3*4*cos(120°)
(a) Ever hear of a 3-4-5 right triangle?
(b) for this one, use the law of cosines to find the distance d:
d^2 = 3^2 + 4^2 - 2*3*4*cos(120°)
Answered by
ACHII
5km
Answered by
Finkelstine
Show the solution
Answered by
ghjhhhgg
gffddd
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