Abird flying horizontally accidently at 4.25m/s accidentally drops a rock it was carrying. a short time later, the rocks velocity is 13.0m/s at -70.9. how much time has passed? (unit s)

If y gets smaller as x gets bigger and y have an relationship?

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

What does si stand for, when referring to a system of measurement