A rotating wheel requires 2. 98-s to rotate through 37. 0 revolutions. Its angular speed at the end of the 2. 98-s interval is 97. 2 rad/s. What is the constant angular acceleration of the wheel?.

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1 - wave length

2 - amplitude

3 - crest

4 - trough

explanation:

duh.

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