Calculating Velocity: Force, Mass & Distance Relationship

[The Trice]

I have a body of 1kg of mass being acted on by a force of magnitude equal (10000/(y^2))
[where y is the distance between the body and a certain point] and this force is in the direction pointing to the point
so depending on what mentioned above :-
what i know is : f = a = (1000 0/(y^2))
and that Dy/Dt = V (velocity)

What is needed is the function of the velocity in terms of time.
Thanks for reading.

 

[omkar13]

As you have said a=10000/(y^2)
==>Dv/Dt=10000/(y^2)
if y is a fixed value and independent of time ,integrating with respect to t

v=10^5(t)
-------
y^2

 

[The Trice]

ofcourse y is not a constant value since the distance which is y decreases as the body moves towards the point

 

[The Trice]

any help ??

 

[The Trice]

is it this hard i just want to know the velocity equation between body attracted to a point or another body!

 

[Redbelly98]

You probably need to find the velocity as a function of distance y first. Using energy conservation would help with that.