The expressions below give the position function for an object moving along the x-axis. In which case is the velocity zero at the time
. In all cases,
are constants.
ANSWER:
To answer this question, we need to get the velocity function by getting the derivative of the given position functions. After getting the derivative, the velocity function with a value of zero at time
is the answer.
If we take the function
, and find its derivative, the resulting function is
.
If we substitute
in the velocity function, the result is
.
And we know that the
is equal to zero, which makes the velocity function equal to zero at time zero.