Dymamics unit
A car standing still is struck by 2 other cars simultaneously. a beetle applies a force of 2350N [N60degreesE] and a truck applies a force of 4150N [SW]. What is the net force acting on the stationary car?
Hmmmm. What about friction on the wheels? I know, neglect that.
Add these as vectors. I recommend one of two methods: break up each force into N and E components, then add, then resolve back.