Answer to Question #188994 in Mechanical Engineering for Rounak

Question #188994

A flywheel rotates with a constant retardation due to breaking from t=0to t=10 seconds. it made 400 revolutions . At time t=8 sec , it's angular velocity was 45πrad/sec. Determine


1 . Value of constant ratardation.


2. Total time taken to come to rest.


3. Total revolution made till it comes to rest.


1
Expert's answer
2021-05-05T07:40:28-0400

w = 2\pi*N/60

= 2\pi *400/60

= 41.89 rad/sec

= (45-41.89)/2

1. = -1.556 rad/sec^2

t = 41.89/1.559

2. time = 26.92 sec

Number of revolution made before rest,



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