Question: Question 3 : Falling Yo - Yo A yo - yo consists of two uniform discs, each of mass M and radius R , connected

Question

3

: Falling Yo

-

A yo

-

yo consists of two uniform discs, each of mass

M

and radius

R,

connected by a short light axle of radius a around which a portion of a thin string is wound. One end of the string is attached to the axle and the other to a fixed point P

.

The yo

-

yo is held with its centre of mass vertically below

P

and then released.

(

)

If the string has length

L,

what is the speed of the yoyo just before it reaches the end? Explain what happens next. What is the change in momentum

(

.

.

the so called impulse

)

due to the tension in the string at this time?

Question 3: Falling Yo-Yo A yo-yo consists of two uniform discs,

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