A system consists of a mass M2 and a uniform rod of mass M1 and length l. The ro

Question

A system consists of a mass M2 and a uniform rod of mass M1 and length l. The rod is initially rotating with an angular speed ? on a horizontal frictionless table about a vertical axis fixed at one end through point P. The moment of inertia of the rod about P is Ml²/3. The rod strikes the stationary mass M2. As a result of this collision, the rod is stopped and the mass M2 moves away with speed v.

d. What is responsible for the change in the linear momentum of this system during the collision?

e. Why is the angular momentum of this system about point P conserved during the collision? ?

Explanation / Answer

a)

momentum after collision = momentum before collision

M2*v*l = M1*l^2*w/3

v = (M1/M2)*l*w/3

b)

p = M1*l/2*w

c)

Pf = M2*v*l = M1*l^2*w/3

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.