How to calculate the torque due to the balance stick

Slides:

Advertisements

Similar presentations

AP Physics Introducing….TORQUE

Advertisements

The easiest lever to analyze is the first class lever (seesaw), that is balanced by itself. The center of gravity of the lever is on the fulcrum. cg.

Torque Torque is defined as the tendency to produce a change in rotational motion.

Torque Chapter 8 Section 1.

Force Diagrams and Calculations More Math!!!. Force Diagram 1 Are the forces acting on this object balanced or unbalanced? What is the net force acting.

It will accelerate in a spin!

Torque and Rotation Physics.

Starter If the stick is balanced, how are the masses and distances related? m 1 r 1 + m 3 r 3 = m 2 r 2 + m 4 r 4.

For this review, answer each question then continue to the next page for the correct answer.

A 10-m long steel wire (cross – section 1cm 2. Young's modulus 2 x N/m 2 ) is subjected to a load of N. How much will the wire stretch under.

Torque problem 9-33 The uniform gate in the diagram below has a mass of 51.0 kg. Assume that the force exerted on the gate by the upper hinge acts in the.

1. How is torque calculated?. Torque = Force X length of torque arm T = F x l.

DETERMINATION OF TORQUE

Torque and Center of Mass

Torque and Equilibrium

Rotational Motion. Difference between torque and force If you want to make an object move, apply a force If you want to make an object rotate, apply a.

Warm Up Ch. 9 & 10 1.What is the relationship between period and frequency? (define and include formulas) 2.If an object rotates at 0.5 Hz. What is the.

Physics Equilibrium: Torque Science and Mathematics Education Research Group Supported by UBC Teaching and Learning Enhancement Fund Department.

Ch. 11 Rotational Mechanics Torque. TORQUE n Produced when a force is applied with leverage. n Force produces acceleration. n Torque produces rotation.

Causing Rotational Motion In order to make an object start rotating about an axis, a force is required However, not only the amount of force applied but.

Lecture 36, Page 1 Physics 2211 Spring 2005 © 2005 Dr. Bill Holm Physics 2211: Lecture 36 l Rotational Dynamics and Torque.

Torque. Torque ≡ the action of a leveraged force Torque is the ability of a force to cause rotation or a turning motion. Unbalanced torque provides a.

Torque Torque is an influence which tends to change the rotational motion of an object. One way to quantify a torque is Torque = Force applied x lever.

8-4 Torque The cause of circular motion is often torque. Torque is the product of the component of force perpendicular to the lever arm or moment arm.

 Point at which all other points on the object rotate around  During motion the CM will move in the same path that a simple particle would move if subjected.

T1T1 Experimentation : F1F1 One of your friends wants to close the door, pushing it in the middle (0.5m from the axis) with a force of 10N : he creates.

Equilibrium of large objects Rotation Exercises. Last nights homework Pg 203 #11 F = 140 N #13 Θ = 36.6˚ #15 Horizontal Torque = 115 Nm Vertical Torque.

Objectives  Know the definition of torque  Know that torque is directly proportional to the magnitude of the force and the perpendicular distance.

Statics. Static Equilibrium  There are three conditions for static equilibrium. 1.The object is at rest 2.There is no net force 3.There is no net torque.

Statics. Static Equilibrium  There are three conditions for static equilibrium. 1.The object is at rest 2.There is no net force 3.There is no net torque.

Project Balance a meter stick.

Mechanical Advantage.

Torque and Rotation Physics. Torque Force is the action that creates changes in linear motion. For rotational motion, the same force can cause very different.

Torque Give me a lever long enough and a fulcrum on which to place it, and I shall move the world. -Archimedes.

Torque. Torque: Terms and definitions Close the Door When we apply the force the door turns on its hinges. Thus a turning effect (torque) is produced.

ESS 303 – Biomechanics Angular Kinetics. Angular or rotary inertia (AKA Moment of inertia): An object tends to resist a change in angular motion, a product.

What forces act upon the meter stick? Where should the force of gravity be considered to act? Center of Gravity – the single point on a body where the.

Formative Assessment. 1. A 130. gram uniform meter stick has a 22.0 g clamp on the 23.0 cm mark, where would you clamp a 35.0 g clamp to make the meter.

DO NOW!!! (1 st ) 1.A rectangular prism has length 4 cm, width 5 cm, and height 9 cm. a) Find the area of the cross section parallel to the base. b) Find.

Center of Mass Torque. Center of Mass When analyzing the motion of an extended object, we treat the entire object as if its mass were contained in a single.

Levers have the following:

Calculation and result. No. Speed (rpm) Suction Pressure (cm.Hg) Discharge Pressure (kg/cm²) Rotameter reading ( L/min) Dynamometer Force (kg.)

Torque  If an unbalanced force acts on an object at rest, and: 1)the force does not act along the center of mass of the object, 2)the object is fixed.

Moments In order to understand Mechanisms better, we need to understand pivots, moments and equilibrium. Boom Counter balance weight.

CENTER OF GRAVITY (MASS). Uniform Objects Uniform Objects C of M is located in the center of the object C of M is located in the center of the object.

Servo-Finger Linkage as Parallelogram

Lesson 13 The Lever.

Torque and Statics And you.

Introduction to Torque

Statics Worksheet 1 Answers

Describing Rotational Motion

Rotational Dynamics.

Levers & the Law of Moments

Physics 8.2A Sample problems

Rotational Inertia 8.2.

Introduction to Torque

An introduction to levers Featuring Wile e Coyote.

Bell Work: Centripetal Motion

An introduction to levers Featuring Wile e Coyote.

Angular Momentum and Torque

Bell Work: Torque Review

Moments and Centers of Mass

Do Now Heading: Back to the Basics

Levers What is the relationship between

Machines Levers & Torque.

Torque & Equilibrium.

Presentation transcript:

How to calculate the torque due to the balance stick And you

The steps: 1st, Calculate the mass on side A of the balance stick 2nd,Calculate F on side A (mass on side A of the balance stick X 9.8) 3rd, Center that force on side A - right in the middle of that section 4th , Calculate the torque value on side A (F x dist. to pivot) 5th , Calculate the mass on side B of the balance stick 6th , Calculate F on side B (mass on side B of the balance stick X 9.8) 7th , Center that mass on side B - right in the middle of that section 8th , Calculate the torque value on side B (F x dist. to pivot)

1st, Calculate the mass on side A of the balance stick Example: Length of balance stick = 2 m. Mass of balance stick = 1.4 kg Mass on side A: Use of equivalent ratios. .8 m = ? kg 2 m 1.4 kg Cross multiply: .8 X 1.4 / 2 = .56 kg of mass of balance stick on side A .8 m = side A 1.2 m = side B

2nd,Calculate F on side A (mass on side A of the balance stick X 9.8) Example: Length of balance stick = 2 m. Mass of balance stick = 1.4 kg Force = mass (in kg) X g = (.56 kg) (9.8) = 5.488 N of force on side A due to the mass of the balance stick on side A .8 m = side A 1.2 m = side B

3rd, Center that force on side A - right in the middle of that section Example: Length of balance stick = 2 m. Mass of balance stick = 1.4 kg .8 m / 2 = .4 m to center of mass on side A from pivot .8 m = side A 1.2 m = side B .4 m

3rd, Center that force on side A - right in the middle of that section Example: Length of balance stick = 2 m. Mass of balance stick = 1.4 kg Torque A = F X d = (5.488 N) ( .4 m) = 2.195 Nm of torque from the mass of the balance arm on side A .8 m = side A 1.2 m = side B 2.195 Nm .4 m

3rd, Center that force on side A - right in the middle of that section Example: Length of balance stick = 2 m. Mass of balance stick = 1.4 kg Torque B = F X d = 8.23(N) .6(m) = 4.94 Nm of torque from the mass of the balance arm on side A .8 m 1.2 m .4 m .6 m 2.195 Nm 4.94 Nm