Dos cargas idénticas se encuentran separadas por una distancia de 36 mm. Si la energía potencial del sistema en el que se encuentran es de 7.8 mJ (miliJoules). Determina la magnitud de cada carga. (Expresa el resultado de la siguiente forma: Q=2.35x10 a la menos seis C)

0.19 m/s and 0.45 m/s

2b2t

explanation:

2b2t

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

option number c is the right answer.