Question

In part 1 of Lab 4 you determined the initial velocity of the projectile object. You were asked to shoot the ball out at an angle of zero degrees. Using the height from where the ball exits the launcher and the average distance the ball traveled you were asked to calculate the initial velocity. Assuming a height of 0.89 and an average distance of 2.02 calculate the initial velocity. Record your answer rounded to two decibel places and include units.

Answer 1

motion along vertical

h = 0.5 gt^2

0.89 = 4.9 t^2

t = 0.316 s

motion along horizontal

x = v t

2.02 = v * 0.316

v = 6.39 m/s

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