What lift force is necessary for a 5200 Kg helicopter to have an acceleration of 2.3 m/s/s?
A 168N sign is supported from its top surface by two ropes that each make a 22.5o angle with the horizontal. The sign is not moving. How much force is in each rope?
The sign in the last problem is now hung by ropes that each make an angle of 42o with the horizontal. How much force is now in each rope?