Sigh in 0.65 0.60 0.55 0.50 Run #20 0.45 0.40 0.35 0.30 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 Time (s) 3.0 3.2 0.4 0.3 Linear 0.2 mt + b m =-0.18855 ± 0.00137 b -0.31353 ± 0.00246 Run #20 0.1 0.0 r -0.998 -0.1 -0.2 -0.3 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 2.0 2.2 2.4 2.6 2.8 3.0 3.2 Time (s) (Graph title here] A Position (m) A Velocity (m/s)

m's +2m (add the terms on the left) m' n's 3m's ms ms (remove the number 3-guideline 2) (replace the units symbols with dimensions) (guideline 3) Activity 4A Using dimensional symbols prove that the following equations are correct. 1) s = ut +at? , if s = distance, u = initial velocity, t = time a = acceleration %3D %3D 2) v=u+ at ,where v = velocity, a = acceleration andt= time %3D %3D 3) mv = Fs, where m = mass, v² = velocity, F = force and s = distance %3D %3D %3D Topic 5: Error Analysis

Please answer both. Thank

Use the VELOCITY vs. TIME graph below to answer the following questions. Let west be the positive direction & east be the negative direction. Express all answers in the appropriate mks units. [NOTE: m/s² should be entered as m/s^2.] VELOCITY vs. TIME GRAPH X-velocity (m/s) A.) Over what period of time was the object speeding up? 15 s to 25 s B.) Over what period of time was the object slowing down? 100 Os to 10 s C.) Over what period of time was the object's velocity constant? 50 10 s to 15 s D.) State the magnitude & direction of the object's acceleration at 3 s. west - 50 E.) State the magnitude & direction of the object's acceleration at 13 s. south - 100 F.) State the magnitude & direction of the object's acceleration at 16.5 s. t (s) 25 10 15 20 north