What happens to a current when the electric field in the wire increases
a. The drift velocity increases, and the number of electrons passing through a cross-section of wire decreases.
b. The drift velocity decreases, and the number of electrons passing through a cross-section of wire decreases.
c. The drift velocity decreases, and the number of electrons passing through a cross-section of wire increases.
d. The drift velocity increases, and the number of electrons passing through a cross-section of wire increases.

newton's first law of motion

your answer is c! hope this : )

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