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Physics, 15.06.2020 03:57 ezequiel2k

Ayuda :(. Pregunta N° 1:
Determine la cantidad de trabajo de la fuerza de gravedad de A hasta B. (g= 10m/s2).
a.20 J
b.70 J
c.50 J
d.100 J
e.120 J

Pregunta N° 2:
Si el joven estudiante del Colegio Saco Oliveros emplea una fuerza de módulo de 120N para elevar un bloque de 9,5 kg, determine la cantidad de trabajo neto que se desarrolla sobre el bloque si asciende 8m(g=10m/s2)
a.100 J
b.120 J
c.150 J
d.180 J
e.200 J

Pregunta N° 3:
Una esfera es levantada desde el piso por medio de la fuerza de F=+50j N. Si la resistencia del aire de 5N, determine el trabajo neto sobre la esfera hasta que este a 10m del piso. (g=10m/s2)
a.100 J
b.150 J
c.200 J
d.250 J
e.300 J

Pregunta N° 4:
En la figura mostrada, determine la cantidad de trabajo neto sobre el bloque de 8 kg.(g=10m/s2)
a.120 J
b.140 J
c.129 J
d.150 J
e.170 J

Pregunta N° 5:
Un cuerpo de 5kg inicia un MRUV desde el reposo con una aceleracion de modulo 4m/s2.¿Cuanto es el trabajo neto sobre el al recorrer 8 m?
a.100 J
b.110 J
c.120 J
d.140 J
e.160 J

Pregunta N° 6:
Si la cantidad de trabajo neto que se ha desarrollado sobre el bloque al desplazarlo de A hasta B es de +50j, determine la cantidad de trabajo que ha desarrollado la fuerza F.
–36 J
–46 J
–56 J
–96 J
–66 J

Pregunta N° 7:
Si el trabajo neto sobre el bloque es +40j, determine la cantidad de trabajo realizado por la fuerza F de A hasta B.
a.–120 J
b.–150 J
c.–160 J
d.–200 J
e.–240 J

Pregunta N° 8:
Dada la grafica, determine la cantidad de trabajo neto entre x=0 m y x= 15 m. (uk=0,5; g= 10m/s2).
a.+40 J
b.+25 J
c.+20 J
d.–25 J
e.–20 J

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Ayuda :(. Pregunta N° 1:
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