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Pooja singh Grade: 11
        

if we have velocity u along x-axis and velocity v along y-axis then is the resultant of these two will be the change in velocity? if yes why is it so? please explain....

6 years ago

Answers : (2)

AKASH GOYAL AskiitiansExpert-IITD
419 Points
										

Dear Pooja


resultant velocity will be the vector addition of the two velocities.


Suppose if Vx is 3 and Vy is 4 then V=3i+4j


and magnitude of resultant=√(32+42) = 5


if Vx is -3 (negative means velocity is along negative direction of x axis) and Vy is 4 then resultant V=-3i+4j


and magnitude of resultant=√((-3)2+42)=5


for more details on vector addition see the first chapter in physics book


or follow the link


http://www.askiitians.com/iit-jee-physics/general-physics/addition-and-subtraction-of-vectors.aspx


 


All the best.                                                           


AKASH GOYAL


AskiitiansExpert-IITD


 


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6 years ago
Aniket Patra
48 Points
										

Actually the change is not the correct term to be used here.The resultant is the net velocity of the body,which has u and v as its components along x and y axis.Here the velocities u and v are independent,they have no effect on each other(because they are at 90 degrees).The essence of change in any physical dimension is the effect of some other agent which is indespensible.

6 years ago
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