<p>Name______Block ______Date ______</p><p>Power Lab Lisa Peck</p><p>Part 1: Leg Power</p><p>1. Go to the East stairwell in Landy hall. Measure the vertical distance from the floor to the landing of the 2nd floor in meters. </p><p> h = ______</p><p>2. Have your partner time how long it takes you to run up the stairs making sure you touch every step. Be careful you do not fall.</p><p> t = ______</p><p>3. Convert your weight to Newtons using 1 lb. = 4.448 N</p><p>Fg = ______</p><p>4. Find the power expended as you came up the stairs. Show your work.</p><p>Power = ______</p><p>5. If one horsepower (hp) is 745.7 watts, what equivalent horsepower did you expend?</p><p> horsepower = ______Part 2: Arm Power</p><p>1. Select a weight and determine its weight in Newtons Fg = ______</p><p>2. Have your lab partner stand a meter stick vertically beside your hand as you hold onto the weight that is resting on the table top. Signal your lab partner to start the stop watch as you lift the mass vertically 1 meter. Quickly return the mass to the tabletop and lift it again. Continue this pattern until you have lifted the mass up and down 10 times. Stop the clock.</p><p> t = ______Calculate the power you used in lifting the mass 10 times. Show your work.</p><p>P = ______</p><p>Solve the following problems, showing all of your work.</p><p>1. How much work would you do if you carried a 10 kg mass from one end of the room to the other? d= 30m</p><p>W = ______</p><p>2. How much work would you do if you carried the same 10kg object from the bottom of the bleachers to the top of the bleachers? (d= 8.6m)</p><p>W = ______</p><p>3. If your job was handling 2.5 kg bricks to a brick layer, the avg. distance from the brick pile to the brick layer is 1.8m, and you hand up one brick every 2 minutes, how much work would you do in a 6 hours? What power would you have expended?</p><p>P = ______</p><p>4. If you climb to the top of a stepladder that rises to a height of 3.5m in a time of 2.4 seconds, how much work do you do and how much power do you expend?</p>