Question

train traveling at a speed of 90kmph, cross a tree in 10 sec so the length of the train is?​

Answer 1

Answer:

250 meters

Step-by-step explanation:

First convert Kmph in m/s

Thus speed of train will be = (90*5)/18 = 25m/s

Now S = D/T

Thus Length = T*S = 10*25 = 250 meters

Length of the train will be 250 meters

Answer 2

Step-by-step explanation:

Given:-

train traveling at a speed of 90kmph, cross a tree

in 10 sec.

To find:-

Length of the train ?

Solution:-

Speed of the train = 90 kmph

=>(90 × 1000)/(60×60) mps

=>90000/3600

=>900/36

=>100/4

=>25 mps

Speed of the given train = 25 mps

Time taken for crossing the tree = 10 sec.

We know that

Distance = Speed× Time

Length of the train = Speed of the train × Time

taken for crossing the tree

=>25 mps × 10 sec

=>250 m

or

we know that

1 km = 1000 m

1 m = 1/1000 km

250 m = 250/1000

=>25/100

=>0.25 km

Answer:-

Length of the train = 250 m = 0.25 km

Used formulae:-

• Distance = Speed× Time

• 1 km = 1000 m