Velocity, acceleration, and time for constant accelaration only (2-5)

Question 1 of 4

Question

$\textbf{Constant accelertation}$ of the object

{"title":"velocity","description":"Incorrect","type":"incorrect","color":"#99CCFF","code":"[{\"shape\":\"rect\",\"coords\":\"4,18,38,66\"}]"} {"title":"velocity at time t","description":"Incorrect","type":"incorrect","color":"#993300","code":"[{\"shape\":\"rect\",\"coords\":\"104,17,140,59\"}]"} {"title":"constant acceleration","description":"Correct!","type":"correct","color":"#333300","code":"[{\"shape\":\"rect\",\"coords\":\"236,13,266,53\"}]"} {"title":"time at x","description":"Incorrect","type":"incorrect","color":"#000080","code":"[{\"shape\":\"rect\",\"coords\":\"286,19,287,47\"},{\"shape\":\"rect\",\"coords\":\"271,16,301,49\"}]"}

Question

$\textbf{Velocity at time}$ $t = 0$ of the object

{"title":"velocity","description":"Incorrect","type":"incorrect","color":"#99CCFF","code":"[{\"shape\":\"rect\",\"coords\":\"4,18,38,66\"}]"} {"title":"velocity at time t","description":"Correct!","type":"correct","color":"#993300","code":"[{\"shape\":\"rect\",\"coords\":\"104,17,140,59\"}]"} {"title":"constant acceleration","description":"Incorrect","type":"incorrect","color":"#333300","code":"[{\"shape\":\"rect\",\"coords\":\"236,13,266,53\"}]"} {"title":"time at x","description":"Incorrect","type":"incorrect","color":"#000080","code":"[{\"shape\":\"rect\",\"coords\":\"286,19,287,47\"},{\"shape\":\"rect\",\"coords\":\"271,16,301,49\"}]"}

Question

$\textbf{Velocity at time}$ $\boldsymbol{t}$ of an object in linear motion with constant acceleration

{"title":"velocity","description":"Correct","type":"correct","color":"#99CCFF","code":"[{\"shape\":\"rect\",\"coords\":\"4,18,38,66\"}]"} {"title":"velocity at time t","description":"Incorrect","type":"incorrect","color":"#993300","code":"[{\"shape\":\"rect\",\"coords\":\"104,17,140,59\"}]"} {"title":"constant acceleration","description":"Incorrect","type":"incorrect","color":"#333300","code":"[{\"shape\":\"rect\",\"coords\":\"236,13,266,53\"}]"} {"title":"time at x","description":"Incorrect","type":"incorrect","color":"#000080","code":"[{\"shape\":\"rect\",\"coords\":\"286,19,287,47\"},{\"shape\":\"rect\",\"coords\":\"271,16,301,49\"}]"}

Question

$\textbf{Time}$ at which the object has velocity $v_x$

{"title":"velocity","description":"Incorrect","type":"incorrect","color":"#99CCFF","code":"[{\"shape\":\"rect\",\"coords\":\"4,18,38,66\"}]"} {"title":"velocity at time t","description":"Incorrect","type":"incorrect","color":"#993300","code":"[{\"shape\":\"rect\",\"coords\":\"104,17,140,59\"}]"} {"title":"constant acceleration","description":"Incorrect","type":"incorrect","color":"#333300","code":"[{\"shape\":\"rect\",\"coords\":\"236,13,266,53\"}]"} {"title":"time at x","description":"Correct!","type":"correct","color":"#000080","code":"[{\"shape\":\"rect\",\"coords\":\"286,19,287,47\"},{\"shape\":\"rect\",\"coords\":\"271,16,301,49\"}]"}

Review

This equation tells us how the object’s velocity $v_x$ varies with time. If $a_x=0$ so that the object is not accelerating, $v_x$ at any time $t$ is the same as the velocity $v_{0x}$ at $t = 0$ : in \perpher words, the velocity is constant. If $a_x$ is not zero and the object is accelerating, the term $a_xt$ in this equation says that the velocity changes with time.