19 people getting off the train can be represented by -19, and 17 people getting on the train as +17. -19 + 17 = 2, meaning that there was a net loss of two people. if there are 63 people on the train now, that means there were 65 to begin with.

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.