When a boat moves through the water, the waves in front of the boat bunch up, while the waves behind the boat spread out. this i
1 answer:
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Answer:
Smaller by 7 times
Explanation:
Rotational mass is called moment of inertia
So, initial moment of inertia, I1 = I
initial angular velocity, ω1 = ω
Final moment of inertia, I2 = 7I
Final angular velocity, ω2 = ω/7
The kinetic energy in rotational motion is given by
So, initial kinetic energy of rotation
So, final kinetic energy of rotation
Thus, teh kinetic energy becomes smaller by 7 times.
Complete Question
The complete question is shown on the first uploaded image
Answer:
Explanation:
From the question we are told that
The tension is
The length of the wire is
The mass is
Generally the frequency is mathematically represented as
=>
=>
