Question

A train A is travelling with a speed of 300m/sec.The length of the train is 100m .
i) How much time will it take to cross a lamp post?

Answer 1

Answer:

it will take 1/3 seconds to cross the lamp post

Step-by-step explanation:

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Answer 2

Time taken by the train with speed of 300m/sec and length of 100m

Definition/Formula:

The formula to calculate speed is ,$speed=\frac{distance}{time}$

Step-by-step explanation:

It is given that the length of the train is 100m which is referred as the distance and the speed is given as 300m/sec,substitute the given in the formula

$speed=\frac{distance}{time}\\Time=\frac{distance}{speed} \\=\frac{100m}{300m/sec} \\=\frac{1}{3} sec$

Therefore,the time taken by the train A with a speed of 300m/sec and length of 100m is $\frac{1}{3}sec$