![]() ![]() Since the hammer and ruler form a connected system, their joint movement is determined by the position of the center of mass of this system. The system balances! You can also replace the ruler with another hammer – this will work too! The hammer’s handle pushes upwards on one end of the ruler, while the hammer as a whole simultaneously pulls the ruler downwards. Hook the loop around the end of a ruler and set the ruler on the brink of a horizontal surface. Wrap two rubber bands around the handle of a hammer, forming a loop close to its head. Your attention, please! May we present to you a case of impossible – at first glance – equilibrium :)
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