chelli Answers
1.Ans :- Speed
Speed gives an idea of how slow or fast a body is moving. We should know that velocity is defined as the rate change of displacement per unit time. Speed in a specific direction is also known as velocity.
2.Ans :- An odometer or odograph is an instrument used for measuring the distance traveled by a vehicle, such as a bicycle or car.
Answers
Answer
Velocity is a vector quantity that refers to "the rate at which an object changes its position." Imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. While this might result in a frenzy of activity, it would result in a zero velocity. Because the person always returns to the original position, the motion would never result in a change in position. Since velocity is defined as the rate at which the position changes, this motion results in zero velocity. If a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. Every step must go into moving that person further from where he or she started. For certain, the person should never change directions and begin to return to the starting position.