Question

The rails on a railroad are built from thirty foot sections. when a train wheel passed over the unction between two sections there is an audible click. inside a train that is traveling at 70 mph, how many clicks can a passenger hear during a 20 second interval?

Answer 1

70 clicks in 20 seconds

Explanation:

The speed of the train in mile per hour is approximately the number of clicks heads in 20 seconds.

Each click shows that the train has travelled 30ft

1 click per second is =(30ft/sec = 3600 × 30) / 5280

20.45mph approximately 20mph

Therefore

20mph = 20 clicks in 20 s

30mph = 30 clicks in 20s

70mph= 70 clicks in 20s