Cite Newton’s first law of motion.
Solution 9RQ Newton’s first law of motion: An object in rest will stay in rest and an object in motion will continue its motion with constant velocity, unless acted upon by an external unbalanced force. The first law of motion states about the behaviour about an object. If the object is in rest, it will not move until some force is applied to it. It also says that an object in motion will continue its motion with constant velocity. This means if an object is moving with some particular velocity, say v it will continue to move with the same velocity. And since the velocity is a vector quantity, that is, velocity contain both direction and magnitude, constant velocity means both direction and magnitude will remain same and will not change unless some force is applied. This also states that, we have to apply some force to change direction of motion.