144 km/hr = 144 × 1000/60 × 60 = 1440/36 = 40 m/sec [1 km = 1000 m and 1 hr = 60 x 60 sec] ...

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Standard VI

Mathematics

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144 km / h =-...

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144 km/h =___m/s.

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Solution

$144 k m / h r =$ $\frac{144 \times 1000}{60 \times 60} =$ $\frac{1440}{36} =$ $40 m / s e c$

[1 km = 1000 m and 1 hr = 60 x 60 sec]

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54 $\frac{k m}{h}$ = ___ $\frac{m}{s}$

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144 km/h =___m/s.

144 km/hr= 144 × 100060 × 60= 144036= 40 m/sec [1 km = 1000 m and 1 hr = 60 x 60 sec]

$144 k m / h r =$ $\frac{144 \times 1000}{60 \times 60} =$ $\frac{1440}{36} =$ $40 m / s e c$

[1 km = 1000 m and 1 hr = 60 x 60 sec]