A small mail bag is released from a helicopter. The helicopter is rising with a constant speed of 1.5 m/s
After 2.0 seconds, what is the VELOCITY of the mailbag?
I use the equation Vf = Vi + a*t
and a would be 9.8 m/s squared right?
For a class expierement we went outside and watched an air rocket launch into the air, and measured the total hang time.
Only knowing the time, find the velcotiy at liftoff.
the time is 7 seconds, and i understand that at the maximun height the time is 3.5 seconds. I don't know which...