1 km = 1000 m 1 hr = 60 min = 3600 s 1 kmph = 1 km1 hr = 1000 m3600 s 1 kmph = 1036 m s^ 1 ∴ 36 kmph = 36 ×1036 = 10 m s^ 1 nbsp; ...

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Standard VII

Physics

Speed vs Velocity

36 kmph =

Question

36 kmph =

4 {m s}^{- 1}

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9 {m s}^{- 1}

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10 {m s}^{- 1}

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Solution

The correct option is C $10 {m s}^{- 1}$
$1 km = 1000 m$
$1 hr = 60 min = 3600 s$
$⟹ 1 kmph = \frac{1 km}{1 hr} = \frac{1000 m}{3600 s}$
$⟹ 1 kmph = \frac{10}{36} {m s}^{- 1}$

$∴ 36 kmph = 36 \times \frac{10}{36} = 10 {m s}^{- 1}$

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36 kmph =

The correct option is C 10 m s−11 km=1000 m 1 hr=60 min=3600 s ⟹1 kmph=1 km1 hr=1000 m3600 s ⟹1 kmph=1036 m s−1 ∴36 kmph=36×1036=10 m s−1

The correct option is C $10 {m s}^{- 1}$
$1 km = 1000 m$
$1 hr = 60 min = 3600 s$
$⟹ 1 kmph = \frac{1 km}{1 hr} = \frac{1000 m}{3600 s}$
$⟹ 1 kmph = \frac{10}{36} {m s}^{- 1}$

$∴ 36 kmph = 36 \times \frac{10}{36} = 10 {m s}^{- 1}$