Se deja caer un cuerpo de 2 kg de masa, desde una altura de 60 metros. Despreciando los rozamientos con el aire.

Responder:

1176 Julios

Explicación paso a paso:

Como no se nos dice qué encontrar, podemos encontrar la energía potencial

PE = mgh

Dado

Masa m = 2 kg

g = 9,8 m / s ^ 2

h es la altura = 60 m

Sustituir

PE = 2 * 9,8 * 60

PE = 1176 Julios

Por lo tanto, la energía potencial del cuerpo es 1176 julios.

8

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.