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Lab # 3

# Lab # 3 - Natasha Tavares February 5 2011 PHY 2048L 004...

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Natasha Tavares February 5, 2011 PHY 2048L 004 Experiment 3 Projectile Motion February 5, 2011 Purpose:

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1. To measure and verify the flight range and time of a ball launched at an angle Θ. Theory: Two equations can describe the projectile motion. Θ is the angle of the initial velocity above the horizontal V o (m/s) is the initial speed of the ball, t(s) is the flight time of the ball from shot off to hit the floor, and x(m) is the flight range, i.e., the horizontal distance from the release point to the landing point on the floor. To get the information needed to complete this experiment we ran five trials at each angle (0 ° , 30 ° , 45 ° ). After this we used the formula given in the lab manual and more given by the lab instructor: y= y 0 + (v 0 Sin θ ) t-1/2gt 2 X= (V 0 Cos θ )t H max =(v o Sin θ ) 2 /2g V 2 =V i 2 +2g(h max ) X= -b + Sq*Rt(b 2 -4ac)/2a Data: Data Set Height y0 (m) Angle ( θ ) Initial Speed V0 (m/s) Flight Time t(s) Real Distance x(m) 1 1.005 0.000 3.200 0.445 1.382 2 1.010 30.000 3.072 0.534 1.658 3 1.015 45.000 3.024 0.719 1.535
Analysis: Table 1 Θ X real (measured) x(calculated using eq.(2)) (v o and t are from measured

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