Wednesday
April 16, 2014

Homework Help: physics

Posted by Anonymous on Saturday, May 18, 2013 at 12:17pm.

The speed of a moving bullet can be determined by allowing the bullet to pass through
two rotating paper disks mounted a distance d apart on the same axle (Fig. below). From the angular
displacement of the two bullet holes in the disks and the rotational speed of the disks, we can
determine the speed v of the bullet. Find the bullet speed for the following data:
d = 80 cm, = 900 rev/min, and angular displacement = 31.0

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