Ejercicio s2.20 - Estática del cuerpo extenso (hombre sube por la escalera)

Physics, statics of extended bodies, moment of a force, Newton's laws. Secondary and university level. Supplement to the Physics course of the CBC, UBA. The content of this video corresponds to the written version available at: https://ricuti.com.ar/no_me_salen/est... SUPPORT THE CHANNEL * Dear reader, student, colleague, user, whoever you may be: if you wish to contribute financially so that this site can continue to grow with more exercises, more videos, and more critical analyses, you can do so in the following way. DONATIONS FROM ARGENTINA ▶ Bank transfer in Argentine pesos ALIAS: CABRERA.RICUTI.CA (Ricardo José Cabrera, Banco Galicia, Argentina) ▶ Bank transfer in US dollars ALIAS: CABRERA.RICUTI.US (Ricardo José Cabrera, Banco Galicia, Argentina) DONATIONS FROM OTHER COUNTRIES ▶ Credit or debit card via PayPal at this LINK: https://www.paypal.com/ncp/payment/8E... Patronage (monthly contribution) will be reviewed shortly. Contributors will not receive additional benefits on this site (ricuti.com.ar) or on the Fisica - No me salen channel, which will remain free and open to all. The policy is: contribute as you can, and to the extent you can. Neither their names nor the amounts contributed will be mentioned on the site or channel. Apr-2025. Buenos Aires, Argentina. I can't find them, Ricardo Cabrera, ricuti.