Question: A ( 1 0 0 - mathrm { m } ) - long train is heading for an ( 8 0

\ (100 - \

mathrm

{

} \) -

long train is heading for an

\ (80 - \

mathrm

{

} \) -

long tunnel.

Part A

If the train moves sufficiently fast, is it possible, according to experimenters on the ground, for the entire train to be inside the tunnel at one instant of time? Explain.

Match the words in the left column to the appropriate blanks in the sentences on the right.

possible It is since the experimenters on the ground will measure that the length of the train

$A \ ( 1 0 0 - \ mathrm { m } \ ) - long train is$

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