Question

In: Physics

A top-loading washing machine has a cylindrical drum that rotates about a vertical axis. The drum...

A top-loading washing machine has a cylindrical drum that rotates about a vertical axis. The drum of one such machine starts from rest and reaches an angular speed of 6.0 rev/s in 12.0 s. The lid of the machine is then opened, which turns off the machine, and the drum slows to rest in 11.0 s. Through how many revolutions does the drum turn during this 23 s interval? Assume constant angular acceleration while it is starting and stopping.

Solutions

Expert Solution

Consider the starting part

Initial angular velocity,

time,

Final angular speed,

--------

Use formula

---------

Use formula

===================

Consider the stopping part

Initial angular velocity,

time,

Final angular speed,

Use formula

---------

Use formula

===================

Total angular displacement,

Convert radians to turns. Divide by

ANSWER:

==========================

genius_generous answered 2 hours ago
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