A small solid sphere falls freely from rest in air with acceleration of 10m/s squared how far does it fall in 5.0s?​

Which one of the following research methods can show cause and effect

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.

Ascientific blank must be testable and capable of being proven false?