gap0063
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1.
(a) A particle has ~r(0) = (4 m)j and ~v(0) =
(2 m/s)i.
If its acceleration is constant and given by
~a = −(2 m/s2) (i+j), at what time t does the
particle first cross the x axis?
Answer in units of s.
(b) At what time t is the particle moving parallel to the y axis; that is, in the j direction
Answer in units of s
2.Some equation with a constant acceleration... not sure which one
3. I tired to draw it out but I don't know how... I don't understand how to start the problem
(a) A particle has ~r(0) = (4 m)j and ~v(0) =
(2 m/s)i.
If its acceleration is constant and given by
~a = −(2 m/s2) (i+j), at what time t does the
particle first cross the x axis?
Answer in units of s.
(b) At what time t is the particle moving parallel to the y axis; that is, in the j direction
Answer in units of s
2.Some equation with a constant acceleration... not sure which one
3. I tired to draw it out but I don't know how... I don't understand how to start the problem