chikilin1k chikilin1k

02-09-2019
Physics

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What is the velocity of a bullet train that moves 400 meters west over 3 minutes anad 20 seconds?

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encali2008 encali2008

02-09-2019

Answer: v= 2m/s

Explanation: simple kinematic

time moving t= 3min+20s = 3*60+20 = 200s

velocity v= distance / time = 400m / 200s = 2m/s ( very slow ... usain bolt is faster than your train ... v(bolt)= 100m /9.5s = 10.5m/s

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