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An electric train is moving with a velocity of $30 m / s$ . How much distance will it travel in $30$ $seconds$ ?

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400 m

1900 m

900 m

930 m

answer is C.

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Detailed Solution

The distance travelled by train in

30

seconds

900 m

.
We know that velocity,

v = \frac{d}{t} - - - (a)

Distance travelled

= d

Time taken to travel that distance

= t

Therefore equation (a) can be written as

d = v \times t - - - (b)

It is given that the time taken is

30

seconds

and velocity is

30 m / s

.
Substituting the values in the equation (b),

d = 30 \times 30

d = 900 m

Hence, the distance travelled by train in 30

seconds

with a velocity of

30 m / s

900 m

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