Question

an object is said to be at _______ ,if its position does not change with time​

Answer 1

Answer:  In physics, rest is the state an object being stationary relative to a particular frame of reference or another object; when the position of a body with respect to its surroundings does not change with time it is said to be "at rest".

Explanation:

Answer 2

rest

Explanation:

if a body does not change its position with time means it is at rest.