As a Train Starts from Rest and Then Accelerates Down

question 27

Multiple Choice

As a train starts from rest and then accelerates down the track,coming toward me faster and faster,the speed of the sound waves coming toward me will be

• A)slower than the normal speed of sound in air.
• B)equal to the normal speed of sound in air.
• C)some constant speed faster than the normal speed of sound in air.
• D)faster and faster.

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Definitions:

Road Safety

Measures and strategies implemented to prevent road accidents and protect road users, including drivers, pedestrians, and cyclists, aiming to reduce injury and fatalities.

World Road Safety Day

An international observance dedicated to raising awareness about road safety and promoting measures to prevent road traffic deaths and injuries.

Seat Belts

Safety devices consisting of adjustable straps intended to secure a passenger or driver in a vehicle to reduce injury during collisions.

End Presentation

The conclusion or final part of a presentation where a summary or closing remarks are given.