prelab07

# prelab07 - 1 Draw a free-body diagram for the shaft and the...

This preview shows page 1. Sign up to view the full content.

IUPUI PHYS 15200 Page 1 of 1 Pre-Lab07: TORQUE Name Due at the beginning of the lab period A massless string is wrapped around a vertical shaft of radius r . The string passes over a massless pulley and its free end is attached to a hanging mass m . The shaft is free to rotate without friction. The total moment of inertia of the shaft and its components is I . When the system is released, the string unwinds causing both the shaft and the hanging mass to accelerate at the same constant rate.
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1. Draw a free-body diagram for the shaft and the hanging mass. 2. Derive an expression for the net force acting on the hanging mass using Newton’s 2 nd law. 3. Derive an expression for the net torque acting on the vertical shaft using Newton’s 2 nd law for rotations. 4. Combine your two expressions from Problems 2 and 3 to show that the net torque may be written as rm ( g – a ), where a is the linear acceleration of the hanging mass. vertical shaft I m...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online