Kinematics Question 373
The velocity of an object moving rectilinearly is given as a function of time by $ v=4t-3t^{2}, $ where v is in m/s and t is 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 $
BETA
