SSC MTS EXAM

Detailed explanation-1: -An object is in motion if its distance from another object is changing. A reference point is a place or object used for comparison to determine if something is in motion. Distance is the length of a path between two points. Displacement is the length and direction that an object has moved from its starting point.

Detailed explanation-2: -Specifically, if an object changes direction in its journey, the total distance traveled will be greater than the magnitude of the displacement between those two points.

Detailed explanation-3: -The motion of an object is determined by the sum of the forces acting on it; if the total force on the object is not zero, its motion will change. The greater the mass of the object, the greater the force needed to achieve the same change in motion. For any given object, a larger force causes a larger change in motion.

Detailed explanation-4: -Acceleration occurs when an object changes speed, direction, or both. To calculate the acceleration of an object, the change in velocity is divided by the length of the time interval over which the change occurred.