Sobre un plano inclinado que forma un angulo de 45 grados con la horizontal resbala un bloque de peso con velocidad constante.
si el bloque tiene una masa de 4,5 kg determine las fuerzas en el sistema y cual es el valor de las fuerzas en el sistema

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

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well clustered together.

points close on a scatter diagram