In which one of the following situations can the equations ofkinematics not be u
ID: 1760529 • Letter: I
Question
In which one of the following situations can the equations ofkinematics not be used?A) When the velocity changes from moment to moment, B) when the velocity remains constant, C) when the acceleration changes from moment to moment, D) when the acceleration remains constant. Please explain why I can't figure out why they all can't beused???? In which one of the following situations can the equations ofkinematics not be used? A) When the velocity changes from moment to moment, B) when the velocity remains constant, C) when the acceleration changes from moment to moment, D) when the acceleration remains constant. Please explain why I can't figure out why they all can't beused???? C) when the acceleration changes from moment to moment, D) when the acceleration remains constant. Please explain why I can't figure out why they all can't beused????
Explanation / Answer
The above person is right. Its (c) -- When the acceleration is variable (changing from momentto moment). The equations you are referring to are actually called the C.A.K.E.(lol), or Constant Acceleration Kinematic Equations. There are acompletely different set of equations to use when acceleration isvariable. If acceleration is not constant then the instantaneous accelerationat any time is the slope of the tangent line on the velocity-timegraph at that time, t. You can also find the average accelerationover a finite time period. Hope this helps.