It's about 300 times as heavy as a Puck (Hockey)
In other words, 50 kilograms is 306.730103909390 times the weight of a Puck (Hockey), and the weight of a Puck (Hockey) is 0.0032601951593751 times that amount.(Ice hockey)
A standard ice hockey puck weighs between 0.15592237718750 kilograms and 0.170097138750 kilograms. Hockey pucks can be shot or passed at speeds of up to 160 kph (99 mph) during games.
It's about 300 times as heavy as a Hamster
In other words, the weight of a Hamster is 0.003 times 50 kilograms.(for Syrian hamster, a.k.a. golden hamster, a.k.a. Mesocricetus auratus; adult)
An adult Syrian hamster has a typical weight of about 0.20 kilograms. Known for transporting food in the pouches of their cheeks so that they can bury it later, some hamsters can store up to 25 kg of food in their borrows.
It's about 150 times as heavy as a Human Heart
It's about 150 times as heavy as a Can of Soup
In other words, the weight of a Can of Soup is 0.0071 times 50 kilograms.(for Campbell''s Condensed Tomato Soup, 317.9 ml)
A can of Campbell''s Tomato Soup weighs 0.350 kilograms. Cans have been used to store soup and other foods since their invention in 1913, but a dedicated can opener was not developed until cans began to use thinner materials — prior to that time, cans were usually opened using various blunt instruments and tools.
It's about 100 times as heavy as a Football (American)
In other words, 50 kilograms is 121.63435155030 times the weight of a Football (American), and the weight of a Football (American) is 0.008221361706249 times that amount.(a.k.a. "pigskin") (NFL standard)
Per National Football League official rules, an American football must weigh between 0.396893323750 kilograms and 0.4252428468750 kilograms. Because of NFL regulations, ceremonial considerations, and backup requirements, each NFL Superbowl requires the manufacture of 144 balls exclusively for the event.
It's about 100 times as heavy as a Football (Soccer)
In other words, 50 kilograms is 120 times the weight of a Football (Soccer), and the weight of a Football (Soccer) is 0.0083 times that amount.(a.k.a. Soccer, a.k.a. Association Football) (FIFA Law 2 specification)
According to FIFA's Law of the Game number 2, a football must weigh between 0.410 kilograms and 0.450 kilograms. An artifact on display at the Smith Art Gallery in Museum in Stirling, Scotland is said to be the world's oldest football and is about one-third to one-half the size of a modern football.
It's about 80 times as heavy as a Basketball
In other words, 50 kilograms is 80.168095340 times the weight of a Basketball, and the weight of a Basketball is 0.012473790175 times that amount.(NBA official ball standards, Size 7)
A regulation NBA basketball, manufactured by Spalding, is known as a Size 7 ball and weighs 0.623689508750 kilograms. These balls have 4,118 pebbles each with a diameter of 2.5 mm