Procedure: 1. Using the bathroom scale, weigh yourself in pounds and convert that to kilograms, using the conversion factor (one kilogram is equal to 2.2 pounds) and record it in table 1. 2. Multiply the kilograms by the acceleration due to gravity and record it in table 1. This will be your weight in Newton which represents the force needed by the student to lift him or herself up the stairway. 3. Measure and record the vertical height of the stairway in table 1. This can be done by measuring the height of one step and multiplying it by the number of steps that make up the stairway. 4. Measure and record the time to walk up and run up the stairway and record it in table 1. (Table 1: Work and power data and calculations) Weight in [Pound] Mass in (Kilogram) Weight in (Newton) Vertical distance (meter) Time (Seconds) Work done {Joules} Power (Watts) Horsepower Developed [power/746 watts) 5. Using the data recorded in table 1, calculate the work done in walking and running up the stairway and from that, calculate the horsepower developed in both cases. Work and Power Introduction: The concept of work deals with applying a force on an object, which results in the object's motion over a certain distance in the same direction that the force was applied. In general, work is done against friction or against gravity. In this experiment we are going to calculate the work and power of a student walking up and running up a stairway. Since the student is lifting himself or herself through a distance that is parallel to the force due to gravity. Walking up the stairway, results in using energy at a lower rate than running up the stairs. Therefore, less power is needed when walking up the stairway and greater power is needed when running up the stairway. The rate at which energy is expended, or the rate of work, is known as power. That is, power is defined as work per unit time: Power = Work/Time Work = (Force) x (Distance) The unit of power is watt using the metric unit and horsepower using the English unit and one horse power is equivalent to 746 Watts and 1 Kilo watts is about 1.5 Hp. vertical height F= mxg Objective: The purpose of this lab is to calculate the power output of a student walking and running up the stairway. Required Equipment and supplies: Measuring tape, Stop watch, Bathroom scale and a calculator.Discussion guest-ions: 1. 2. Compare your power output both climbing and running up the stair way to a 60- watts light bulb? lfyour horse power is saved and then converted to electricity, how many (SO-watts light bulbs could you have kept lit during your climb? . Two people climb a roof ofa building. One climbs through a steep set of a stair way and the other climbs through a gradual stair way. Which person did more work? Explain. How would you use the Work-Kinetic energy theorem to measure the horsepower developed in running the track? What is the difference between the horsepower developed in walking versus running? Could the horsepower developed by walking ever be greater than running? What do you conclude about this lab