# PHYSICS(HELP)

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A uniform stick of mass m and length l is suspended horizontally with end B at the edge of a table as shown in the diagram, and the other end A is originally held by hand.

The hand at A is suddenly released.

At the instant immediately after the release:

(a) What is the magnitude of the torque (τB) about the end B at the edge of the table?

Express your answer in terms of m, l and acceleration due to gravity g as needed (enter m for m, l for l and g for g).

τB=

(b) What is the magnitude of the angular acceleration α about the end B at the edge of the table?

Express your answer in terms of m, l and acceleration due to gravity g as needed (enter m for m, l for l and g for g).

α=

(c) What is the magnitude of the vertical acceleration a of the center of mass?

Express your answer in terms of m, l and acceleration due to gravity g as needed (enter m for m, l for l and g for g).

a=

(d) What is the magnitude of the vertical component of the hinge force (N) at B ?

Express your answer in terms of m, l and acceleration due to gravity g as needed (enter m for m, l for l and g for g).

N=

• PHYSICS(HELP) - ,

Prob # 7
ocw.mit.edu/courses/physics/8-01sc-physics-i-classical-mechanics-fall-2010/two-dimensional-rotational-motion/two-dimensional-rotational-dynamics/MIT8_01SC_problems21_soln.pdf

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