Question

Say Yes or No:
Can an object reverse the direction of its motion even though it has constant acceleration?

Answer 1

yes,

consider that velocity of object at any time t is given as

$v\left(t\right)=t-2$

at $t=0$ sec, magnitude of $\left|v\right|=2m/s$ (for war a direction)

also acceleration of object is

$a\left(t\right)=\frac{dv\left(t\right)}{dt}...\left(i\right)$

$=\frac{d(t-2)}{dt}=1m/s^2$

at t = 2

$v\left(t\right)=t-2\Rightarrow 2-2$

= 0m/s

however acceleration remains constant as that

of equation (1)