at the beginning of the lab to get credit. Turning this pre-lab question sheet l

Question

at the beginning of the lab to get credit. Turning this pre-lab question sheet later would result in not getting any credit for the pre lab. 1. Using a ruler and a protractor draw a vector of 15 m/s oriented at 220 degree. Use a scale of 1 cm = 5 m/s. Angles are measured counterclockwise from the positive x axes (0 degree). b) Clearly draw the components and measure them. X- component = 15 sin (5.1 cm) = 11.5 m/s. y-component = 15 Cos (50) cm = 9.642 m/s. c) Calculate the x- and -y components using analytical method. Show your calculation to get credit. X - component = m/s y- component = m/s. d) Compare calculated and measured components. Discuss your finding.

Explanation / Answer

analytical method x component =   15 * cos220

                                         =   - 11.4906 m/sec

analytical method y component = 15 * sin220

                                        =   - 9.6418 m/sec

measured x component = - 11.5 m/sec

measured y component = - 9.642 m/sec

% error x component =   0.08 %

% error y component = 0.002 %

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