Question

table I ul liic UIIU
is constant.
Solution:
S
= 27 (21) = 42 it rad, 0 = 0 (fan stops).
Using equations analogous to kinematical
equations of motion
0-
02 - 0
a=
t
28
0-371
0-(371)
2(427)
..t = 28s
t
Remark: One can also use the unit
“revolution for angle and get rid of ti
throughout (for such data). In this case,
0 = 1.5 rps and 0 = 21 rev.
Example 1: A fan is rotating at 90 rpm.
It is then switched OFF. It stops after 21
revolutions. Calculate the time taken by it
The angle through which the blades of
the fan move while stopping is 0 = 2^N
to stop assuming that the frictional torque
no = 90 rpm = 1.5 rps :.00 = 210 no = 31 ---​

Answer 1

Answer:

heeehehehehehheehhehehehehhehehehehhhehehhehsjsusiwiif