A train starting from a railway station and moving with uniform acceleration attains a speed of 40 km/h in 10 minutes. Find its acceleration.

100km/h²

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240km/h²

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120km/h²

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200km/h²

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Solution

The correct option is B
240km/h²

Here,

u = 0 , v = 40 km/h , t = 10 min = $\frac{1}{6}$ h

Using , v = u + at

a = $\frac{v - u}{t}$

= $\frac{(40 - 0) \times 6}{1}$

a = 240 $k m / h^{2}$

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