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anonymous
 one year ago
A particle moves with a constant acceleration of (0.1i0.2j)ms^2 it is initially at the origin where it has velocity (i+3j)ms^1. i and j are east and north
Find the speed of the particle when it is traveling south east
anonymous
 one year ago
A particle moves with a constant acceleration of (0.1i0.2j)ms^2 it is initially at the origin where it has velocity (i+3j)ms^1. i and j are east and north Find the speed of the particle when it is traveling south east

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Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2using this reference frame: dw:1434044128319:dw the speed of the particle is given by the subsequent equations: \[\Large \left\{ \begin{gathered} {v_x}\left( t \right) = 0.1t  1 \hfill \\ {v_y}\left( t \right) =  0.2t + 3 \hfill \\ \end{gathered} \right.\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2dw:1434044305726:dw

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2for example, at t=10 seconds, we have: \[\Large \left\{ \begin{gathered} {v_x}\left( {10} \right) = 0.1 \times 10  1 = 0 \hfill \\ {v_y}\left( {10} \right) =  0.2 \times 10 + 3 = 1 \hfill \\ \end{gathered} \right.\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thanks, this is using a simplified version of the equation v=u+at?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and would it be correct to say that when it is travelling south east i is equal to j ?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2yes! I have used that formula, and south east means that our particle has the speed oriented as j and i

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thanks i got the answer, this helped a lot.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Aww isn't this adorable

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Say Robdogg, did you ever clear up them herpes?
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