Question

Situation when body can have no displacement after moving

Answer 1

yeah ANSWER

Acceleration is change in velocity per unit time

a=(t2−t1)(v2−v1)

v2−v1=30kmph= 30×(5/18)m/s

=325m/s

t2−t1=10s

a=(3×10)25=65m/s

Answer 2

Yes, the object instead of moving through a distance can have zero displacement. Example: If an object travels from point A and reaches to the same point A, then its displacement is zero.