Aman stands by a train track to watch the train car go by. inside, a man walks through the train car eating a hot dog (the hot dog is moving 1 m/s towards his mouth). determine the hot dog's velocity with respect to the man standing still outside of the train car. a) -11 m/s b) -9 m/s c) 9 m/s d) 11 m/s

D) 11 m/s

Explanation:

The problem asks us to calculate the velocity of the hot dog with respect to the observer stationary outside the train. This velocity is given by:

where

is the velocity of the train (towards right)

is the velocity of the man (towards right)

is the velocity of the hot-dog (towards left, so we put a negative sign)

Substituting the numbers into the equation, we find

and the positive sign means the velocity is toward right.

D) 11 m/s

Explanation:

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