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Chandan Das Grade: Upto college level
        

A particle moving along positive x-axis with a speed of 5m/s suddenly changes its direction along the positive y-axis with the same speed.The change in velocity of the particle is what?        (In these type of qstns i am unable to determine the resultant direction of the particle.Can u suggest a simple way of determining it.)

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear Chandan das


here you should see what is initial and final velocity.


initial velocity = 5i


final velcity  = 5j


 


so change in velocity = (final -inital)


                               =5j-5i


   and for magitude = |5j-5i|


                             =5√2


resultant direction is changes with respect to time.


 suppose for t1 sec it moves in x direction and then for t2 sec it moves in the y direction so


x=5t1


y=5t2


so resultant direction = tanΘ=y/x = 5t2/5t1


                                                =t2/t1


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Badiuddin

7 years ago
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