Physics, 05.05.2021 17:50 Liannahiggins
Na figura uma mola de constante elástica 170 N/m está presa do alto de um plano inclinado a 37,0°, sem atrito. A extremidade inferior do plano está a 1,00 m do ponto de relaxação da mola. Uma lata de 2,00 kg é empurrada contra a mola 0,200 m e libertada do repouso. Calcule a rapidez da lata:
a) No instante em que a mola retorna ao comprimento relaxado (que é o momento em que a lata se solta da mola);
b) Ao atingir o solo.
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