Recent content by bob195

thanks Dadface!

what estimates? u will have c for the friction and g for the gravity.u could considers some sort of acceleration from looking at the system.could it be done? i would think it would be of the function speed and maybe have to differentiate a few times but would not know where to start...

Homework Statement How could u find the drag/friction due to air on a A4 size page dropped perpendicular to the ground. There are about 20 sheets and is dropped about waist height. The tricky thing is no instruments are aloud. Only your senses... Homework Equations F=-cv where c is...