March 29, 2017

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As you hurry to catch your flight at the airport, you encounter a moving walkway that is 85m long and has a speed of 2.2 m/s relative to the ground. If it takes you 68s to cover 85m when walking on the ground, how long will it take you to cover the same distance on the walkway? Assume that you walk with the same speed on the walkway as you do on the ground.

  • physics - ,

    V = 85m / 68s. = 1.25m/s Walking on ground.

    t = d / V = 85m / (2.2+1.25)m/s = 24.6s.

  • physics - ,

    b) How long would it take you to cover the 85 m length of the wolkway if once you get on the wolkway. you immediately turn around and started walking in the opposre direction with a speed of 1.3 m/s relative to the walkway?

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