You are trying to design and build a stylus to use for drawing on a cell phone screen. Your major constraint is size. you design a prototype make a dozen and share with test users. you think you have a great design but several of the test users have trouble drawing fine lines on the phone screen (I’m on a packet I got from school since school is out)(I don’t feel like typing the rest)

that would be b i just took the test : )

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