A swinging hammer is released from rest with 0 = 90 degrees before impacting the stationary block with a mass of 20 kg. The mass moment of inertia of the swinging hammer about point Ois 4.5 kg.m², 1 = 0.3 and r = 0.04. The coefficient of restitution between the block and the hammer is 0.6. What is the angular velocity (in rad/s) of the swinging hammer just after impacting the 20 kg block (0 = 0 degrees) if its angular velocity just before impact is 4.60 rad/s counter clockwise? Write your answer to two decimal places. Consider the counter clockwise direction as positive and remember to include the sign in your answer.
A swinging hammer is released from rest with 0 = 90 degrees before impacting the stationary block with a mass of 20 kg. The mass moment of inertia of the swinging hammer about point Ois 4.5 kg.m², 1 = 0.3 and r = 0.04. The coefficient of restitution between the block and the hammer is 0.6. What is the angular velocity (in rad/s) of the swinging hammer just after impacting the 20 kg block (0 = 0 degrees) if its angular velocity just before impact is 4.60 rad/s counter clockwise? Write your answer to two decimal places. Consider the counter clockwise direction as positive and remember to include the sign in your answer.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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
Transcribed Image Text:Frictionless pivot (0)
r
Block
A swinging hammer is released from rest with 0 = 90 degrees before impacting the
stationary block with a mass of 20 kg. The mass moment of inertia of the swinging
hammer about point O is 4.5 kg.m2, 1 = 0.3 and r = 0.04. The coefficient of restitution
between the block and the hammer is 0.6. What is the angular velocity (in rad/s) of
the swinging hammer just after impacting the 20 kg block (0 = 0 degrees) if its
angular velocity just before impact is 4.60 rad/s counter clockwise? Write your
answer to two decimal places. Consider the counter clockwise direction as positive
and remember to include the sign in your answer.
%3D
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