4. Una viga uniforme de masa m se inclina en un ángulo θ con la horizontal (gura 4). Su extremo superior
produce una inclinación de 90 grados
en una soga muy rugosa amarrada a una pared, y su extremo inferior
descansa sobre un suelo rugoso.
a) Sea µ s el coefciente de fricción estática entre viga y suelo. Suponga que µ s es menor que la cotangente
de θ. Determine una expresión para la masa máxima M que se puede suspender desde lo alto antes
de que la viga se deslice.
b) Determine la magnitud de la fuerza de reacción en el suelo y la magnitud de la fuerza que ejerce la
viga sobre la soga en P en términos de m, M y µ s.
Answers: 3
Other questions on the subject: Physics
Physics, 22.06.2019 11:00, natalieburnett82
Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.
Answers: 3
Physics, 22.06.2019 19:30, jennysantoyo13
Scientist have use computer models to create a series of maps that show how susceptible coastal cities in island countries are to the sea rising at different levels. the map shows that a 1 meter rise would swap cities all along the us eastern seaboard. a 6-meter sea level rise with sub merge a large part of florida. thermal expansion has already raise the oceans 10 to 20 centimeters the most likely cause, directly and indirectly, for such a rise in sea level is
Answers: 2
You know the right answer?
4. Una viga uniforme de masa m se inclina en un ángulo θ con la horizontal (gura 4). Su extremo supe...
Questions in other subjects:
History, 21.03.2020 07:59
Mathematics, 21.03.2020 07:59
