Tom and Fred are carrying a uniform 2.0 m board (assume mass-less). Tom is supporting the board at the left end while Fred is on the right end as shown. Tom has attached his lunch to the board 0.6 m from Fred and the tension in the string is 200N.

Tom and Fred are carrying a uniform 2.0 m board (assume mass-less). Tom is supporting the board at the left end while Fred is on the right end as shown. Tom has attached his lunch to the board 0.6 m from Fred and the tension in the string is 200N.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter8: Rotational Equilibrium And Rotational Dynamics

Section: Chapter Questions

Problem 8WUE: A horizontal plank 4.00 m long and having mass 20.0 kg rests on two pivots, one at the left end and...

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Center of Gravity of a system

The centre of gravity is a property that is based on the geometry of a rigid body or any particle. It is described as an equilibrium point or a hypothetical location where the total weight of the body is concentrated.

Question

0.6 m
Tom and Fred are carrying a uniform 2.0 m
board (assume mass-less). Tom is supporting
the board at the left end while Fred is on the
right end as shown. Tom has attached his lunch
to the board 0.6 m from Fred and the tension in
the string is 200 N.
2m
T= 200 N
Tom
Fred
Find the force that Fred exerts on the board.
A) 60 N
B) 200 N
C) 80 N
D) 140 N
E) 100 N
O A
O B
O C

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