8 photos: Actors who have played Batman. Christian Bale â After the disaster of Batman & Robin, the franchise was destined to remain a joke until director Christopher Nolan came along to reinvent the role and finally make the Dark Knight, well, dark. photos: Actors who have played Batman. Christian Bale â After the disaster of Batman & Robin, the franchise was destined to remain a joke until director Christopher Nolan came along to reinvent the role and finally make the Dark Knight, well, dark.
Full Answer. The instantaneous speed of an object should not be confused with the average speed. For example, a person who drives 60 miles in a single hour has an average speed of 60 miles per hour, but the instantaneous speed of the vehicle could vary greatly from one instant to another.
Hence, the instantaneous acceleration of an object at a given instant is defined as the limiting value of the average acceleration in a small time interval around the given instant, when the time interval tends to zero.