A 800kg , light-weight helicopter ascends from the ground with an acceleration of 3.00m/s2 .
Over a 6.50s interval, what is the work done by the lifting force?
What is the work done by the gravitational force?
What is the work done by the net force on the helicopter?
work=mgh/time=mg/time * 1/2 a time^2
posted by bobpursley
I don't know.posted by Elizabeth