A sticky ball with a mass = 3 kg is traveling at 2 m/s and it is 30 cm above the

Question

A sticky ball with a mass = 3 kg is traveling at 2 m/s and it is 30 cm above the central axis of a Ruler which is 1 meter long and has a mass = 5 kg. The sticky ball collides and sticks to the ruler. Where is the center of mass of the system after the collision? Calculate the Vcm and omega f of the system after the collision about their center of mass. Calculate the %loss of K.E. What is the total velocity of a point on the top of the ruler when it is vertical. Is this twice the center of mass velocity or less or more? Compare with car in snow or in rain!

Explanation / Answer

sol formula The only equation I can find in my notes that doesn't ask for the m of the glove is F=ma=m[(v2-v1)/t] Then for velocity its v=delta x/delta t 3. The attempt at a solution v=x/t -> t=x/v=.3m/2 m/s =x F=(5kg)(0-2 m/s /xs) = -y

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