{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Phys Notes March11 - Y15 ch10 1 Ch 10 Angular...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Y15 ch10 1 Ch 10 Angular Momentum (Recall) The torque of a force describes the tendency of the force to cause or change rotational motion of the body on which the force acts. τ = F l = F r sin ϕ = F tan r, τ = r × F Angular acceleration of a rigid body is proportional to the sum of the torques acting on it ; the proportionality con- stant is given by the moment of inertia (for motions with fixed direction of the axis of rotation). α = 1 I τ tot , ( τ tot = I α ) , τ tot = τ tot,external The sum of the torques of all forces acting on a rigid body is equal to the sum of the torques of external forces acting on it. Another form of this: If rotation about z -axis then τ tot z = I α z
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon