Thread: Momentum

Hi Guys, I have question on momentum.

A 2000 kg automobile going east on chestnut street at 60mi/hr collides with a 4000kg truck which is going south across chestnut street at 20mi/hr.If they become coupled
on collision, what is the magnitude and direction of their velocity immediately after colliding?

In this case we want to use conservation of linear Momentum.But i have a struggle on their velocity because it is a vector equation, So how can i find their velocity in proper way.

can any one understand my problem?

Originally Posted by srirahulan

can any one understand my problem?

momentum is conserved in both the x and y directions

Thanks for your solution but,How can i apply the equation for that.

Originally Posted by srirahulan

Thanks for your solution but,How can i apply the equation for that.

in the x-direction ...






in the y-direction ...






... solve for the final velocity using the equations for each component of final velocity determined by the conservation of momentum equations above.