Intext solved examples - II — task. Science State Board, Class 9.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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The brakes applied to a car produce an acceleration of 6

${ms}^{- 2}$ in the opposite direction to the motion. If the car takes 2 $s$ to stop after the application of brakes, calculate the distance it travels during this time.

Solution:

Time (

$t$ )

$=$ 2

$s$

Acceleration (

$a$ )

$=$

$-$ 6

${ms}^{- 2}$ (Opposite direction to the motion)

Final Velocity (

$v$ )

$=$

$0$

$ms^{-1}$

From the Equation of motion - I, We know that,

$i = i + i i$

Substituting the given values of

$v$ ,

$a$ and

$t$ in the above equation, we get

$Initial\ velocity\ (u)\ =$

$ms^{-1}$

From the Equation of motion - II, We know that,

$i = i i + \frac{i}{i} \times (i i^{i})$

Substituting the given values of

$u$ ,

$a$ and

$t$ in the above equation, we get

Distance travelled

$=$

$m$ .

$1$

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17. Intext solved examples - II

Exercise condition: