Have you ever wanted to be an inventor? now is your chance! for this portion of the assessment you will design your own rube goldberg device. rube goldberg devices use simple everyday items and take advantage of simple potential to kinetic energy conversions. when several of these conversions are combined, the device is able to perform a simple task, just like the one in the lab activity.

d) physical means can be used to separate the components of air.

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