Ahot air ballon with a mass of 500kg ascends at a constant rate of 1.5 m/s for 20s. how much work is done by the upward force?

Work done = force  × distance
distance = speed  × time; where speed = 1.5 m/s, and time = 20 s
distance = 30 m
since the balloon is moving at a constant velocity, there is no net force acting on the balloon, the downwards force is equal to the upwards force. thus, the downwards force is weight = upwards force = 500×9.8=4,900 n
work done = 4,900×30 = 147,000 j

I’m good with pshycology

100 pounds is 100 pounds no matter the object or item being weighed