Which statement places events during the Space Race in the correct order from the earliest to the most recent? 1.NASA was established, US satellite Explorer launched, first man walked on the moon, first man orbited the Earth

2.first man walked on the moon, first man orbited the Earth, NASA was established, US satellite Explorer launched

3.US satellite Explorer launched, NASA was established, first man orbited the Earth, first man walked on the moon

4. first man orbited the Earth, first man walked on the moon, US satellite Explorer launched, NASA was established

d eras and periods

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

u

explanation: