Un niño esta subido a un tiovivo que se mueve describiendo una trayectoria circular con una velocidad angular de 15 rpm y con un radio de 250cm cual es su velocidad angular en sistema internacional
cual es su velocidad lineal cual es la frecuencia en hertzios(Hz)
existe algun tipo de aceleracion si existe explica que aceleracion es y calculala

the total distance traveled by the car is

30km + 49km = 79 km .

chemical energy --> gravitational potential energy --> kinetic energy --> elastic potential energy --> gravitational potential energy

explanation:

when emma starts the hike, the chemical energy stored in her body is used to climb up the mountain, and so she gains gravitational potential energy (because at the end, she will be at a higher height h above the ground). then she goes bungee jumping: as she falls, this gravitational potential energy is converted into kinetic energy (because her speed increases as she falls down), until the point when the rope stretches, and she stops moving. at that moment, all the kinetic energy is converted into elastic potential energy due to the stretching of the rope. then, this energy is released because the rope returns to its natural length, and emma gains a small increase in altitude , so she gains some gravitational potential energy.