Lab3-NievesK (1)

GENERAL PHYSICAL SCIENCE ANSWER SHEET – POWER & MOMENTUM (1/2 point each unless otherwise marked) Group Members: Date: Oct 25, 2023 Procedure #1: Power (4 points for the table) Data Table Name Trial Weight in lb (F) Vertical height of steps in ft (d) Time required to scale the flight of steps in seconds (t) Work done W = Fd Units: (ft ∙ lb) Power P = W/t Units: (ft ∙ lb)/s Horsepower developed P ⎟ 550 Units: (hp) Katherin e Nieves Walki ng 154 8 ft 8.89 s 1,232 J 138.5 J/s .25 hp _ Runni ng 154 8 ft 4.26 s 1,232 J 289.2 J/s .52 hp _ Walki ng _ _ _ _ _ _ _ Runni ng _ _ _ _ _ _ _ Walki ng _ _ _ _ _ _ _ Runni ng _ _ _ _ _ _ _ Walki ng _ _ _ _ _ _ _ Runni ng _ _ _ _ _ _ Results (1 point each) 1 | Page

GENERAL PHYSICAL SCIENCE ANSWER SHEET – POWER & MOMENTUM 1. Explain why there is a difference in the horsepower developed in walking and running up the flight of stairs. Running takes more force than walking. 2. Is there some limit to the height of the flight of stairs used and the horsepower developed? Yes Explain your answer. Because the stairs are limit 3. Could the horsepower developed by a slower-moving student ever be greater than the horsepower developed by a faster-moving student? Yes Explain your answer. Click or tap here to enter text. Procedure #2: Momentum (1 point per column) Velocity (Use the graphs to estimate the maximum velocity to the nearest 0.1) Release Position 40 cm 60 cm 80 cm Estimated Velocity in m/s Trial #1 1.3 m/s 1.7 m/s 1.9 m/s Trial #2 1.4 m/s 1.7 m/s 1.9 m/s Trial #3 1.5 m/s 1.6 m/s_ 1.9m/s PROCESSING THE DATA 1. Release Position 40 cm 60 cm 80 cm Show your work for calculating the average velocity (1.3+1.4+1.5)/3 (1.7+1.7+1.6)/3 (1.9+1.9+1.9)/3 Average velocity in m/s 1.4 m/s 1.7 m/s 1.9 m/s 2. Release Position 40 cm 60 cm 80 cm Show your work for calculating the car’s momentum 1.4*180.4 1.7*180.4 1.9*180.4 2 | Page