a massless scaffold is held up by a wire at each end. the scaffold is 12 meters long. a 300 Newton box sits 3 meters from the left end. what is the tension of each wire? please help
also, there's another question i have..
the tiny planet mercury has a radius of 2400 kilometers and a mass of 2.2 x 10^23 kilograms. what would be the gravitational acceleration of an astronaut standing on the surface of mercury?
can someone help me take this step by step..i have no clue...
i have a question about this problem:
a frictionless curve of radius 100 meters, banked at an angle of 45 degrees may be safely negotiated at a speed of?