Correct Answer - Option 2 : instantaneous velocity
Correct option-2
Concept:
INSTANTANEOUS VELOCITY
- The velocity of a moving object at a particular instant of time is called instantaneous velocity.
- We can define velocity at a particular instant as the limiting value of average velocity when time interval ∆t approaches zero.
- Mathematically we can write the same as follows:
\(v = \displaystyle\lim_{\Delta t \rightarrow 0} \dfrac{\Delta x}{\Delta t}\)
- When we calculate average velocity or speed the selected time interval can be large or small.
- But when the time interval selected is infinitesimally small then it is known as instantaneous velocity or speed.
- For a moving object, the instantaneous speed at any point is equal to the magnitude of instantaneous velocity,
- but the average speed in a given time interval is always greater or equal to the magnitude of average velocity in that interval.
Explanation:
According to the statement given in the question, the speed at which Jofra archer
bowled the bouncer to the batsman is actually measured by the digital speedometer.
A speedometer is a device that is used to measure the instantaneous speed of a moving object.
Hence, option-2 is correct
