A projectile of mass m moves to the right with a speed v i . The projectile stri

Q: A projectile of mass m moves to the right with a speed v i . The projectile stri

part b linear momentum = mass*velocity = m*v angular momentum = linear momentum* lever arm angular momentum before collision Li = m*v*d/2 partc) moment of inertia = I = moment of inertia of rod + moment of inertai of projectile I = (1/12)*M*d^2 + m*(d/2)^2 = (1/12)*M*d^2 + m*d^2/4

ID: 1391403 • Letter: A

Question

A projectile of mass m moves to the right with a speed vi. The projectile strikes and sticks to the end of a stationary rod of mass M, length d, pivoted about a frictionless axle perpendicular to the page through O. We wish to find the fractional change of kinetic energy in the system due to the collision. (Use any variable or symbol stated above as necessary.)

(b) What is the magnitude of the angular momentum of the system before the collision about an axis through O?

Explanation / Answer

part b

linear momentum = mass*velocity = m*v

angular momentum = linear momentum* lever arm

angular momentum before collision Li = m*v*d/2

partc)

moment of inertia = I = moment of inertia of rod + moment of inertai of projectile

I = (1/12)*M*d^2 + m*(d/2)^2 = (1/12)*M*d^2 + m*d^2/4

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A projectile of mass m moves to the right with a speed v i. The projectile strik

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A projectile of mass m moves to the right with a speed v i . The projectile stri

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