Paul is driving his car on a sunny afternoon. which glasses should he ideally wear while driving

Explanation :

While driving Paul should wear sunglasses. Sunglasses protect his eyes from strong UV rays coming from the sun. The sun rays may result in serious eye problems.

He should use sunglasses whether he is driving, playing or doing anything in the sun.

Prolonged exposure in the presence of sun can lead to various problems like skin cancer, cataract etc.  

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