Newton’s Second Law for Rotation Lab

What factors would affect the angular acceleration?

Torque

Something about the mass

Purpose: To create graphical and mathematical representations of the relationship between the torque and the angular acceleration for a system with constant mass.

Angular Acceleration

Newton’s Second Law for Rotation Lab

sinrF

pulley the of radius rstring the in TFF

90

TrF

r

The clamp-on Super Pulley must be adjusted at an angle, so that the thread

runs in a line tangent to the point where it leaves the 3-step Pulley and straight down the middle of the groove on the clamp-on

Super Pulley (Figure 1.2).

Newton’s Second Law for Rotation Lab

sinrF

pulley the of radius rstring the in TFF

90

TrF

gF

TF

Tg FF Since the masses are accelerating

downward.

yy amF

maFF gT

maFF gT

mamgFT

agmFT

Since the string doesn’t slip, the linear acceleration of the masses is equal to the tangential acceleration

of the outside of the pulley.

pulley the of masses the of taa

rat

a

find To