Physics Homework Question?

gracie

New member
I need some help with my physics homework cause I left my book at school, so I called my friend and got the questions but I have no idea what air drag is! Can you help me answer these questions?

What is the net force on a thousand Newton barrel falling with an air drag of 400 Newtons?

A high flying jet cruises at an altitude of 30000 feet at a constant velocity of 100 km/h. The jet engines provide 40000 Newtons of thrust. How much air drag acts on the craft?

Also, could ya maybe answer this one?

Just as a 1 kg ball sitting at the edge of a table falls off the edge, it is kicked horizontally with a force of 10 Newtons. What is the net force on the ball during the kick?

Thanks so much!!!
 
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