In a Physics Projectile Motion Lab, we launched a styrofoam ball in a trajectory and obtained...
In a Physics Projectile Motion Lab, we launched a styrofoam ball in a trajectory and obtained a quadratic equation and graph for the X component and the Y component. Why is my acceleration a larger negative for the ascent rather than the descent (Y components)? Shouldn't the descent have a greater acceleration due to gravity in the y direction?
Homework Answers
Ideally acceleration due to gravity should be same in both accent and descent. But in lab, while calculation of acceleration due to gravity, air friction plays a role. While accent, opposing the motion, air friction acts downward (in direction of gravity) so maximum height is reached more quickly, so magnitude of acceleration due to gravity is larger than the ideal case. So acceleration is larger negative.
Now while decent, opposing the motion, air friction acts upward (opposite to direction of gravity) so it reaches ground slowly, so acceleration observed is less than the ideal case.
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