Why don't objects on Earth seem to obey the second part of Newton's first law

Carbon 14 is a naturally occurring stable

If the new moon happens on january 15th, what shape will it be on february 6th?

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.