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Suppose you are on a conveyor belt walkway at an airport. The walkway is moving at 0.50 m/s. You walk backward at 0.80 m/s to hand your suitcase to a friend who is 3.0 m behind …
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Suppose you are on a conveyor belt walkway at an airport. The walkway is moving at 0.50 m/s. You walk backward at 0.80 m/s to hand your suitcase to a friend who is 3.0 m behind …
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Sep 28, 2018
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Suppose you are on a conveyor belt walkway at an airport. The walkway is moving at 0.50 m/s. You walk backward at 0.80 m/s to hand your suitcase to a friend who is 3.0 m behind you. A security guard stands alongside the walkway watching this. What is your speed relative to the guard?
a. 0.50 m/s
b. 1.30 m/s
c. 0.30 m/s
d. 0.80 m/s
Physics
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Jpaguerre
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Your speed is (0.5 m/s forward) + (0.8 m/s backward)
=
(0.3 m/s backward)
, according to witnesses
who are not on the walkway.
It doesn't matter where you're headed, or why.
MarcinKonowalczyk
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Oct 1, 2018
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MarcinKonowalczyk
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