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Created by Adriana Vincelli-Joma
over 3 years ago
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Question | Answer |
position | location of object at particular time |
point of reference | used to define the position of a body precisely |
distance | magnitude of displacement between two positions |
distance traveled | total length of path traveled between two positions |
displacement | -change in position of object - ∆x= x_f - x_0 |
average velocity | -displacement divided by elapsed time -v = ∆x/∆t -vector |
instantaneous velocity | velocity at specific instant |
instantaneous speed | -distance traveled divided by elapsed time -scalar |
average acceleration | -rate at which velocity changes -a = ∆v/∆t -vector |
instantaneous acceleration | acceleration at specific instant in time |
deceleration | -acceleration in direction opposite to direction of velocity -has opposite sign as velocity |
negative acceleration | -acceleration in negative direction |
Kinematic Equations Summary | -x = x_0 + vt -v = (v_0 + v)/2 -v = v_0 + at -x = x_0 + v_0 t + 1/2 at^2 -v^2 = v_0^2 + 2a(x - x_0) |
free-fall | state of movement that results from gravitational force only |
acceleration due to gravity (on Earth) | g = 9.80 m/s^2 |
Kinematic Equations in Free-Fall | -v = v_0 - gt -y = y_0 + v_0 t - 1/2 gt^2 -v^2 = v_0^2 - 2g(y - y_0) |
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