Question

Can there be displacement of an object in the absence of any force acting on it? Think. Discuss this question with your friends and teacher.

Answer 1

When a object moves with a constant velocity $\left(v\right)$, then it gets displaced in the direction of motion but the net external force experienced by the object is zero.

$F_{external}=ma$

If object moves with constant velocity, acceleration is zero.

Since, $a=0$ $⟹F_{external}=0$

Using $s=ut+\frac{1}{2}a{t}^2$

$⟹$ Displacement $s=ut$ $(\because a=0)$

Hence, an object can have a displacement in the absence of any external force acting on it.