Calcula la fuerza de fricción que mantiene a una persona de 75 kg sentada en la orilla de una plataforma giratoria horizontal, cuando la persona se encuentra a 2 m del
centro de la plataforma y tiene una rapidez tangencial de 3 m/s. Ahora calcula el
momento angular.

hèllo, sorry i really need some more points so if you need this qustion answered than retype it

i think the answer would be reserve.

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s

answerscientific theory;