Question

The velocity of an object is given as a function of time by v=4t-3t,where v is in m/s and t in seconds.Its average velocity over the interval from t= 0to t=2 sec is

Answer 1

As we know that avg. velocity = v+u divided by 2
therefore u=
$4 \times 0 + 3 \times 0 = 0$
and V=
$4 \times 2 + 3 \times 2 = 14$

therefore answer is
$(0 + 14) \div 2 = 7$
m/s