Question

A 900- kg car collides with a 1300- kg car that was initially at rest at the origin of an x-y coordinate system. After the collision, the lighter car moves at 10.0 km/h in a direction of 35 ^o with respect to the positive x axis. The heavier car moves at 13 km/h at -49 ^o with respect to the positive x axis.
What was the initial speed of the lighter car (in km/h)? (I understand this, I need help with the second part of this question-it is ** below. I left this answer in case it is needed to solve the second question. Please show work, I am very confused. Thanks!)
2.22×10¹ km/h

You are correct. Your receipt no. is 161-5222

Previous Tries

*****What was the initial direction (as measured counterclockwise from the x-axis)?******

Answer 1