Kinematics Question 373
Question: The velocity of an object moving rectilinearly it’s given as a function of time by $ v=4t-3t^{2}, $ where v it’s in m/s and t it’s in seconds. The average velocity of particle between t = 0 to t = 2 seconds is
Options:
A) $ 0 $
B) $ -2m/s $
C) $ -4m/s $
D) $ \text{8 }m/s $
Show Answer
Answer:
Correct Answer: A
Solution:
$ v=4t-3t^{2} $
$ V _{avg}=\frac{0-0}{2}=0 $
$ V _{avg}=\frac{{s _{( 2 )}}-{s _{( 0 )}}}{2-0}[ s _{2}=8-8=0 ] $
$ V _{avg}=\frac{0-0}{2}=0 $
