An object that is launched from the top of a tower is dense enough that air resistance can be ignored. The object's initial velocity has components (vx = 60 m/s, vy = 20 m/s). What are the components of the object's velocity 5 seconds after launch.

Well, technically um like well 

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.