How is a flywheel constructed to maximize its rotational inertia?
1 answer:
Answer:
It is constructed with a high mass and a high raidus.
Explanation:
The rotational inertia I for every object is calculated as:
cMR^2 = I
where c is a constant, M is the mass of the object and R the radius of the object.
So, for a flywheel, the rotational inertia is calculated as:
I =
Then, for constructed a flywheel with the maximun rotational inertia we have to set the maximum mass and the maximun radius.
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Answer:
is the compression in the spring
Explanation:
Given:
- mass of the bullet,
- mass of block,
- stiffness constant of the spring,
- initial velocity of the spring just before it hits the block,
<u>Now since the bullet-mass gets embed into the block, we apply the conservation of momentum as:</u>
Now this kinetic energy of the combined mass gets converted into potential energy of the spring.
is the compression in the spring