NEET Class neet Answered
I want to ask that what is the relation between initial velocity and time t=0
Pls explain what is the meaning of time t=0 and also that why it is been said that initial velocity is that velocity which is at t=0
Is it true
Pls explain
Asked by charvipareek057 | 03 May, 2019, 01:34: PM
Expert Answer
Consider an example,
A car is at rest. Thus, we can say that its velocity is zero. Now, consider that this car starts moving with some velocity say, v = 25 m/s. Then here for this car, its initial velocity is zero and final velocity will be the velocity with which the car is moving now i.e. v = 25 m/s.
Now, time, t = 0 is just a reference time from which you have started to analyse the motion of any object.
It is said that the initial velocity of an object is that when t=0, because it is the time at which you have started analysing the motion of an object.
For example, we can say that the car is moving with velocity 30 m/s and then it comes to rest on applying brakes after 30 s.
This means that, when you observed the car moving
initial velocity u =0 and at the same time, the time is t = 0
then after applying brakes car comes to rest after t = 30 s
and as it comes to rest its final velocity v = 0.
Hope, your doubt is cleared by this explanation.
Answered by Shiwani Sawant | 03 May, 2019, 03:55: PM
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