Finding Position of Object with Initial Velocity and Constant Acceleration

  • Thread starter moondawg
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In summary, the problem is asking for the position of an object that starts at the origin with an initial velocity of (-14i-7j)m/s and undergoes constant acceleration of (6i+3j)m/s2 until it comes to rest. The solution involves using calculus to find the position of the object at rest.
  • #1
moondawg
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Homework Statement


An object, which is @ origin @ t=0, has an initial velocity
vo=(-14i-7j)m/s
and constant acceleration
a=(6i+3j)m/s2
Find position of the object when it comes to rest.



Homework Equations





The Attempt at a Solution


So i understand how to solve this problem if the -14 is the initial vel in the x direction or and -7 is the vel in the y direction but I'm not sure if that is what that equation means or if I am supposed to find the resultant and use that? I'm pretty sure the first suggestion is what we did in class but can someone please verify so I can do this problem correctly?!
 
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  • #2
a = dv/dt
a*dt=dv
use some math(calculus)
v=dx/dt (x being position)

... now do you get an idea?
 

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"I hat" and "j hat" are unit vectors that represent the x and y directions, respectively, in a 2D coordinate system. They are commonly used in mathematics and physics to simplify calculations and represent directional quantities.

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