Lab Report 3

Lab Report 3 - Experiment M4 Projectile Motion VI 1 In this experiment we released a ball down an apparatus from a height S and placed a board with

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Unformatted text preview: Experiment M4: Projectile Motion VI. 1) In this experiment, we released a ball down an apparatus from a height, S, and placed a board with carbon paper in front of the launching point for the ball to hit. This procedure was repeated 4 times each for 5 different distance intervals from the board to the launch point. H S # 1 2 3 4 5 6 tan 32 D (cm) 8 16 24 32 40 48 0 = = = 106 cm 32 35 cm h/D -0.59 -0.3 -0.12 0.02 0.22 0.4 -0.6 d1 (cm) d2 (cm) d3 (cm) d4 (cm) d (cm) H - d (cm) 111.3 110.9 110.3 110.3 110.7 -4.7 111.6 111.5 110.4 109.8 110.8 -4.8 109.7 109.6 108.0 108.2 108.9 -2.9 106.0 105.5 105.1 105.3 105.5 0.5 95.2 98.0 97.9 97.7 97.2 8.8 85.7 86.4 87.4 87.8 86.8 19.2 VI. 2) I plotted the graph of h/D vs. D with -tan as the y-intercept. h/D vs. D 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 0 10 20 30 40 50 60 f(x) = 0.02x - 0.68 VI. 4) I calculated the value of vo using the slope of the graph g 2*(v0^2)*(cos^2(32)) g 2*(slope)*(cos^2(32)) Slope v0^2 = = = = = = 0.02 980 2*(0.022)*(0.85^2) 980 0.03 30827.3 cm/s^-1 175.58 cm/s^-1 v0 = VI. 5) I then calculated vo by the given equation and the slope value from the graph. v0^2 = 10*(g)*(S) 7 = = = 10*(980)*(35) 7 343000 7 49000 cm/s^-1 221.36 cm/s^-1 v0 = These two values I calculated using the different methods are quite different, mainly due to various human error and air resistance. VI. 6) I used the errors in slope and intercept to calculate the error of v bb b^2 + 1 m 2*m v0 = = v0 * ^2 + ^ 2 ^ 0.5 52.5 cm/s^-1 a sadf a gwaegaweg awegweg Questions: 1. x=(vcos)t t=x/(vcos) y=(vsin)t-1/2(g*t^2) y=(xvsin)/vcos)-1/2(g(x/(vcos)^2)) (eq.9)y=(xtan)-(gx^2)/2(v^2)cos^2() 2. t=((vsin-vy)/g) ...
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This lab report was uploaded on 04/08/2008 for the course PHY 158 taught by Professor Staff during the Spring '08 term at SUNY Buffalo.

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Lab Report 3 - Experiment M4 Projectile Motion VI 1 In this experiment we released a ball down an apparatus from a height S and placed a board with

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