If a solid conducting cylinder was quickly inserted in a hole of the current-carrying pipe, it will not produce eddy currents because the field inside is zero. however, there is a magnetic in the outside of the current-carrying pipe, therefore, at entry/exist there is a magnetic field and the solid cylinder will experience eddy currents on the surface.

draw the following:

- the system

- the eddy currents

- the direction of velocity of the solid cylinder(at entry or exist)

- the direction of opposing force, would it effect the entry/exist velocity?

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.

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