Un automóvil se mueve a velocidad constante v = 60 [km/h]. Si el tiempo de reacción del conductor al ver la luz roja de una intersección es de 0.5 [s], y ´este desacelera a razón de
40 [m/s2
] ¿Qué distancia recorre el automóvil desde el instante en que el conductor nota
la se˜nal hasta detenerse por completo? Enti´endase por tiempo de reacci´on, el intervalo
de tiempo trasncurrido entre el instante en que se percibe la se˜nal y el instante en que
se lleva a cabo la acci´on (instante en que el conductor activa el sistema de frenado).

Next a skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 15 with the horizontal. the rope moves parallel to the slope with a constant speed of 0.69 m/s. the force of the rope does 800 3 of work on the skier as the skier moves a distance of 8.4 m up the incline. (a) if the rope moved with a constant speed of 2.2 m/s how much work would the force of the rope do on the skier as the skler moved a distance of 8.4 m up the incline? at what rate is the force of the rope doing work on the skier when the rope moves with a speed of (b) 0.69 m/s and (c) 2.2 m/s?

Which articulations allow for greatest range of motion?

The dot diagram represents the motion of the motorcycle as it moves from left to right