2/4100%+B. Weighing a rock(Q-4) Balance the meter stick with two weights and a rock.O cm100cmposition (cm) weight (gwt) lever arm (cm) torque (gwt cm)Rock97. 16+oр3 XXXXXXXXXXXXXX25.16tao3 99.U 1 0-05Weight 2 40. 701003 150.0l 005Weight 1(Q-5) Assume that the torques balance and use this fact to calculate the weight of the rock.Weale(Q-6) Measure the weight of the rock using an electronic balance.W measCalculate the percent discrepancy.WmeasWeale% discrepancy =x 100% =WmeasUp to this point, we have not considered the weight of the meter stick or the upward forceacting on the meter stick due to the fulcrum. Why can we get away with this? Rotational EquilibriumName:Section: 2AL-_Date performed: /-I-Lab station:Partners:A. Conditions for equilibrium(Q-1) Determine the location of the center of gravity of the meter stick by balancing themeter stick alone.Teg = (50.39L±_0.03)cm(Q-2) Now balance the meter stick with 3 weights attached. Use three different weights,each between 100 gwt and 500 gwt.O cm100 cmposition (cm)weight (gwt)lever arm (cm)torque (gwt cm)126.30 + 0.0399.91± 0.0525.05+ 0.03150.el + 0.053 87.27 ± 0. 03 249.16± 0.05土Sum of clockwise torques =Sum of counterclockwise torques =Use this space for calculations.(Q-3) Do the torques balance? Use the discrepancy test and explain your results.N.BNo need to convort the weight in New tons, keep gwt unit

Hello. Since you have posted multiple questions with multiple subparts (solved and unsolved) and not…

cm %3D (Q-2) Now balance the meter stick with 3 weights attached. Use three different weights, each between 100 gwt and 500 gwt. O cm 100 cm position (cm) 126.30 + 0.03 weight (gwt) 99.91+ 0.05 lever arm (cm) torque (gwt cm) 2 5.05 + 0,03 150.ol + 0.05 87.27 + 0.03 249.16+ 0.05 土土 Sum of clockwise torques Sum of counterclockwise torques

cm %3D (Q-2) Now balance the meter stick with 3 weights attached. Use three different weights, each between 100 gwt and 500 gwt. O cm 100 cm position (cm) 126.30 + 0.03 weight (gwt) 99.91+ 0.05 lever arm (cm) torque (gwt cm) 2 5.05 + 0,03 150.ol + 0.05 87.27 + 0.03 249.16+ 0.05 土土 Sum of clockwise torques Sum of counterclockwise torques

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics.

Equilibrium of Forces

The tension created on one body during push or pull is known as force.

Question

2/4
100%
+
B. Weighing a rock
(Q-4) Balance the meter stick with two weights and a rock.
O cm
100cm
position (cm) weight (gwt) lever arm (cm) torque (gwt cm)
Rock
97. 16+oр3 XXXXXX
XXXXXXXX
25.16tao3 99.U 1 0-05
Weight 2 40. 701003 150.0l 005
Weight 1
(Q-5) Assume that the torques balance and use this fact to calculate the weight of the rock.
Weale
(Q-6) Measure the weight of the rock using an electronic balance.
W meas
Calculate the percent discrepancy.
Wmeas
Weale
% discrepancy =
x 100% =
Wmeas
Up to this point, we have not considered the weight of the meter stick or the upward force
acting on the meter stick due to the fulcrum. Why can we get away with this?

Rotational Equilibrium
Name:
Section: 2AL-_
Date performed: /-I-
Lab station:
Partners:
A. Conditions for equilibrium
(Q-1) Determine the location of the center of gravity of the meter stick by balancing the
meter stick alone.
Teg = (50.39L±_0.03)cm
(Q-2) Now balance the meter stick with 3 weights attached. Use three different weights,
each between 100 gwt and 500 gwt.
O cm
100 cm
position (cm)
weight (gwt)
lever arm (cm)
torque (gwt cm)
126.30 + 0.03
99.91± 0.05
25.05
+ 0.03
150.el + 0.05
3 87.27 ± 0. 03 249.16± 0.05
土
Sum of clockwise torques =
Sum of counterclockwise torques =
Use this space for calculations.
(Q-3) Do the torques balance? Use the discrepancy test and explain your results.
N.B
No need to convort the weight in New tons, keep gwt unit

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