Level:
Project ID:
2000010801
Accepted:
0
Clonable:
0
Easy:
1
Consider non-uniform motion of an object whose position as a function of time is given by
\[
s=12t-\frac12 t^2,
\]
where time \(t\) is measured in seconds and position \(s\) is measured in meters. Find the instantaneous velocity of the object at \(8\) seconds. (Hint: Instantaneous velocity can be expressed as the derivative of position function with respect to time: \(v(t)=\frac{\mathrm{d}s}{\mathrm{d}t}\).)
\( 4 \,\mathrm{m}/\mathrm{s}\)
\( 64\, \mathrm{m}/\mathrm{s}\)
\( 8\,\mathrm{m}/\mathrm{s}\)
The object will be at rest at this moment (\( v=0\, \mathrm{m}/\mathrm{s}\)).