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Experiment 9a and 9b

# Experiment 9a and 9b - Experiment 9(a Springs Spring Energy...

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Experiment 9(a) Springs – Spring Energy and Energy Conservation & 9(b) Energy Conservation and the Coefficient of Rolling Friction Table I shows the initial velocity and the distance that the cart moves in the experiment as found in three separate trials. Initial Velocity and Distance Trial Distance (m) Velocity (m/s) 1 0.501 m 14.9 m/s 2 0.508 m 14.1 m/s 3 0.623 m 15.2 m/s Table II shows data collected/calculated in the experiment which includes the spring constant [k(N/m)], the average velocity of the cart [v av (m/s)], the average distance the cart moves to it’s final rest position [d av (m)], and the mass of the cart [mass(kg)]. Data k(N/m) 666 N/m v av (m/s) 14.73 m/s d av (m) 0.544 m mass(kg) 1.018 kg Calculations: v av = (14.9 m/s + 14.1 m/s + 15.2 m/s)/3 = 14.73 m/s d av = (0.501 m + 0.508 m + 0.623 m)/3 = 0.544 m mass = (500 g weight bar + 518g cart and photogate)/1000 = 1.018 kg Table III shows the energy stored in the spring when compressed in length to each of it’s three notch positions on the cart. Spring Notch Length (m) Energy (J) 1 0.009 m

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Experiment 9a and 9b - Experiment 9(a Springs Spring Energy...

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