Question

In example number 12.16 suppose the disc starts rotating anticlockwise with the sae angular velocity omega=(v)/(R), then what will e the angular momentum of te disc about bottommost in this new situation?

Answer 1

Answer:

Total angular momentum is conserved. ω' = Iω - mvR(I + mR2) . ... If the cockroach stops, the angular velocity of the disc will be. A .

Answer 2

Hence the angular momentum is Lo = 1 / 2 mvR (clockwise)

Explanation:

As we know that:

ω / V / R

L disc / A = L disc / COM + L COM / A

r x p = L

L = r x p

Momentum "P" = mv

Now

L = r (mv)

L COM / A = mvr (-n)

L disc / COM = I x ω

L0 = mvR − ICω

ω = v / R

Lo = mvR − (1 / 2mR^2)(vR)

Lo = 1 / 2 mvR (clockwise)

Hence the angular momentum is Lo = 1 / 2 mvR (clockwise)