How would decreasing the time it takes you to run a certain distance affect your speed?

Determine the maximum r-value of the polar equation r =3+3 cos 0

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

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.