It doesn't weigh that much. About 5 pounds. Shoulder pads 2 pounds. Thigh 1/2. Plus helmet and other stuff. The helmet is the biggest problem though. But youll get used to it in a couple weeks.
NFL rules specify a ball weight of 14 to 15 ounces.
all of the pads and the helmet weigh about 10 pounds
the equipment wieghs 7-15 pounds
An adult (gridiron) football helmet typically weighs between two and four kilograms (four to eight pounds) according to various gridiron helmet manufacturers. Youth gridiron football helmets typically weigh quite a bit less, sometimes as little as one kilogram even with a face mask.In this weight is included the face masks which are compulsory at all levels of organised gridiron football. The face mask can account for as much as half of the total mass of a gridiron football helmet, but more typically accounts for around a third of the total.On average, gridiron football helmets are the heaviest form of head protection apart from helmets for such purposes as deep-sea diving. This is because of the thick shells necessary to absorb the energy of the impact such that the headform acceleration exceeds 300g. The shell must also resist penetration of a falling 60 degree conical anvil with specific dimension.
The cost of football equipment varies greatly depending on what is bought and where it is bought. Equipment can be bought new or used, which will also change the price.