Q. Give an example where a body is having uniform acceleration but with 0 velocity.
Explain it in simple language. ( You can explain it in English as well as Hindi ).
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Anonymous:
May be.
This is not possible.
It is possible when you replace velocity with speed.
But in book it was velocity only
it is possible at any particular instant only.
Not for time interval.
wait, it is not possible even in particular instant.
yes, it is possible in particular instant.
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Body Having uniform acceleration and zero velocity at particular instant of time.
For Example:
=> Consider a stone projected in upward direction with some initial velocity.
=> At the time, when stone reaches maximum height, it has
velocity at that instant = 0 .
Why velocity is zero at maximum height?
=> Initially direction of velocity is in upward direction (say upward as positive and downward as negative).
=> After reaching maximum height, it comes down I. e, velocity is negative.(downward)
=>Now, we saw that Velocity initially velocity was positive then after some time it becomes negative.
=> We know that, when some positive quantity becomes negative then it has to arrive in between at 0.
Like :
6,5,4,3,2,1,0,-1,-2,
Here, this sequence goes from positiv^ to negative.
In between, it arrived at 0 too.
=> Velocity at maximum height changes direction, I. e, At that instant it's magnitude becomes zero.
Although there was uniform acceleration g=10m/s^2.
For Example:
=> Consider a stone projected in upward direction with some initial velocity.
=> At the time, when stone reaches maximum height, it has
velocity at that instant = 0 .
Why velocity is zero at maximum height?
=> Initially direction of velocity is in upward direction (say upward as positive and downward as negative).
=> After reaching maximum height, it comes down I. e, velocity is negative.(downward)
=>Now, we saw that Velocity initially velocity was positive then after some time it becomes negative.
=> We know that, when some positive quantity becomes negative then it has to arrive in between at 0.
Like :
6,5,4,3,2,1,0,-1,-2,
Here, this sequence goes from positiv^ to negative.
In between, it arrived at 0 too.
=> Velocity at maximum height changes direction, I. e, At that instant it's magnitude becomes zero.
Although there was uniform acceleration g=10m/s^2.
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