The answer using the graphical method and analytical method of vector addition will always be
C. Same
Analytic method means adding vectors (x₁,y₁) and (x₂,y₂) give (x₁+x₂,y₁+y₂)
Example: Addition of (2,3) and (1,1) gives (3,4)
Solving it graphically will also give (3,4)
Answer:
Explanation:
Given
A is the area of circle with radius r
Differentiate w.r.t time
Also
Length of each segment is
Speed of wave in first segment is
Speed of wave in second segment is
Speed of wave in third segment is
Now time for the transverse wave to propagate is
simplifying we get
C.) Pedestrians yielding to cross traffic.
diameter of earth in miles= 7928 miles
1 mile = 1.609 km
diameter of earth in km= 7928*1.609
=12,756.152 km
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