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April 16, 2014

April 16, 2014

Posted by **waqas** on Saturday, August 6, 2011 at 8:14am.

owers and balloons in hand) to welcome a

friend. Her plane is delayed. While waiting, he notices that it takes 2 minutes 47 seconds to get down the hall on the moving sidewalk. While walking (not on the moving sidewalk), it took him 110 seconds. If he walks while on the sidewalk how long will it take him (s)?

- physics -
**bobpursley**, Saturday, August 6, 2011 at 8:20amVelocity walking on sidewalk=velocitysidqalk+velocitywalking

= distance/time1+distance/time2

= distance/167sec+ distance/110 seconds

= 110 distance+167distance/(110*167)

or 277 *distance/(110*167)

or

distance/timewalkingonsidewalk=above

timewalkingonsidewalk=110*167/277

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