7. Un niño tiene 35 kg esta sobre un trineo que tiene una masa de 5 kg. Si el niño y el trineo viajan juntos y tienen una energía cinética de 260 J que tan raídamente podrán moverse.

El niño y el trineo se mueven a 3.61 m/s

Explanation:

Energía Cinética

Un cuerpo de masa m que se mueve con rapidez v, posee una energía cinética de:

Se nos dice que un niño de 35 Kg está sobre un trineo de 5 Kg y ambos viajan juntos. La masa total del conjunto es m=40 Kg.

Además sabemos que su energía cinética es de 260 J y requerimos calcular su velocidad.

Eso lo haremos despejando v de la ecuación anterior:

v = 3.61 m/s

El niño y el trineo se mueven a 3.61 m/s

i dont think you are wrong for wanting to get even with someone who did you wrong.

(i'm an eye for an eye kind of person) but if this person hurt you in a sexual way, i dont suggest doing anything to him. he should be taken to the proper authorities, you could go to jail depending on what you do. if it was something small like your sibling took your spot on the couch, than yea, i would get even with him by taking one of his favorite snacks lol. but i dont suggest you doing anything illegal.

as technology advances, new experiments often expose problems in accepted theories. c

hope i

-lavira: )