A train running at the speed of 240 km/hr crosses a pole in 21 seconds.

A train running at the speed of 240 km/hr crosses a pole in 21 seconds. What is the length of the train?

Answer/Solution

1400 m

Steps/Work

Speed=(240 * 5/18) m/sec
= (200/3) m/sec Length of the train
= (Speed x Time)
= (200/3 * 21) m = 1400 m.
Answer:C

Physics Calculator / Auto Solver

A train running at the speed of km / hr crosses a pole in seconds. What is the length of the train?

Calculated Answer

1400

Step by Step Solution

In order to solve problem, you must evaluate n₁ * (n₀ * 1000) / 3600.

n₀ =	240
n₁ =	21

n₁ * (n₀ * 1000) / 3600
Evaluate n₀ * 1000 = 240000
n₁ * 240000 / 3600
Evaluate 240000 / 3600 = 66.666666666667
n₁ * 66.666666666667
Evaluate n₁ * 66.666666666667 = 1400
1400
The answer to the problem and the result of n₁ * (n₀ * 1000) / 3600 is 1400