Una atracción de feria consiste en lanzar un trineo de 2 kg por una rampa ascendente que forma un ángulo de 30º con la horizontal. Si el coeficiente de rozamiento es 0,15 ¿con qué velocidad hay que lanzar el trineo para que ascienda 4 m por la rampa?

Which statement best describes resistance? resistance is a. how well a current will flow in a material and is measured in volts. b. how well a material conducts an electrical charge and is measured in ohms. c. the ability of a material to attract a positive charge to create a current. d. the ability of a material to repel neutral charges and is measured in ohms.

What is the moment of inertia i of this assembly about the axis through which it is pivoted? express the moment of inertia in terms of mr

Plz suppose you increase your walking speed from 6 m/s to 13 m/s in a peroid of 3 s. what is your acceleration you in advance.