Author Question: Exhibit 13-1 Two blocks of masses m1 and m2 are connected by a light cord that passes over a pulley ... (Read 267 times)

awywial · **on:** Jul 28, 2018

Exhibit 13-1
Two blocks of masses m₁ and m₂ are connected by a light cord that passes over a pulley of mass M, as shown. Block m₂ slides on a frictionless horizontal surface. The blocks and pulley are initially at rest. When m₁ is released, the blocks accelerate and the pulley rotates.

Use this exhibit to answer the following question(s).
Refer to Exhibit 13-1. The total angular momentum of the system of the two blocks and the pulley relative to the axis of rotation of the pulley is

a.
proportional to the radius of the pulley.

b.
proportional to the speed of the blocks.

c.
proportional to the length of the string.

d.
to all of the above.

e.
only to (a) and (b) above.

Question 2

Exhibit 13-1
Two blocks of masses m₁ and m₂ are connected by a light cord that passes over a pulley of mass M, as shown. Block m₂ slides on a frictionless horizontal surface. The blocks and pulley are initially at rest. When m₁ is released, the blocks accelerate and the pulley rotates.

Use this exhibit to answer the following question(s).
Refer to Exhibit 13-1. The total angular momentum of the system of the two blocks and the pulley relative to the axis of rotation of the pulley is

a.
the same at all times.

b.
proportional to l₁, the length of string from the pulley to m₁.

c.
proportional to l₂, the length of string from the pulley to m₂.

d.
conserved because the Earth doesn't move.

e.
proportional to the speed of the blocks.