Achild blows a leaf straight up in the air from rest. the leaf accelerates at 1.0\,\dfrac{\text m}{\text s^2}1.0 s 2 m1, point, 0, space, start fraction, m, divided by, s, start superscript, 2, end superscript, end fraction upward. how much time does it take the leaf to displace 1.0\,\text m1.0m1, point, 0, space, m upwards?

Time taken by the leaf to displace by 1.0 m distance is

seconds

Explanation:

As we know that initial velocity of the leaf is given as

now the acceleration upwards for the leaf is

The displacement of leaf in upward direction is

d = 1 m

so now we have

seconds

gans

explanation:

vestigial organs (like your appendix) are organs that no longer serve a purpose.

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