We worked on our Acceleration of a Falling Object Lab.
The Acceleration of a falling object lab. We worked on Free Fall part 3 in class to practice our understanding of objects being thrown into the air.
We learned that for an object being thrown into the air, \( \vec{v}_f_y = 0 \frac{m}{s} \) at the top.
We also learned that there is symmetry for an object being thrown from the ground and landing back on the same ground. Symmetry of a projectile \( \Delta t_{up} = \Delta t_{down} \) \( \vec{v}_{i_{y~up}} = -\vec{v}_{f_{y~down}} \) \( \Delta \vec{y}_{up} = - \Delta \vec{y}_{down} \) Homework Due 10/14/14 Group Practice - Free Fall 2 We learned that if there is no air resistance, objects, no matter how big or small, all fall with the same acceleration due to gravity. Objects that are dropped always start with an initial velocity of \( 0 \frac{m}{s} \) . Time of a dropped object \( \Delta t = \sqrt{ \frac{2 ~~ \Delta \vec{y}}{\vec{a}_g}} ~~~ [s] \) We learned that if you don't know the time, you still might be able to find the final velocity.
Final Velocity w/out Time \( \vec{v}_f~^2 = \vec{v}_i~^2 + 2~\vec{a}~ \Delta\vec{d} \) We learned how to find the displacement when we have a constant acceleration.
Displacement w/ acceleration \( \Delta \vec{d} = \vec{v}_i ~\Delta t + \frac{1}{2} ~\vec{a} ~(\Delta t)^2 \) Homework Due 10/6/14 GP - Displacements and Final velocities We learned how we can draw the velocity vs. time graph and acceleration vs. time graph if we have displacement vs. time. We also learned how to get any graph from any other.
Homework Due 10/2/14 Graphing Worksheet #2 |
HomeworkLinksArchives
February 2015
Categories |