Asingle loop of copper wire, lying flat in a plane, has an area of 8.20 cm2 and a resistance of 2.40 ω. a uniform magnetic field points perpendicular to the plane of the loop. the field initially has a magnitude of 0.500 t, and the magnitude increases linearly to 3.00 t in a time of 1.06 s. what is the induced current (in ma) in the loop of wire over this time?

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