Frank ICSE Solutions for Class 9 Physics - Motion in One Dimension PAGE NO: 61 Solution 1: A body is said to be in state of rest if it does not change its position with respect to its surrounding objects with time.Solution 2: A vector quantity is that physical quantity which is represented by both magnitude and direction.Solution 3: No mass is not a vector … [Read more...] about Frank ICSE Solutions for Class 9 Physics – Motion in One Dimension