Train Ride V3 4 You are on a train traveling east at speed of 11 m/s with respec

Question

Train Ride V3 4 You are on a train traveling east at speed of 11 m/s with respect to the ground. If you walk east toward the front of the train, with a speed of 2.1 m/s with respect to the train, what is your velocity with respect to the ground? 13.1 m/s east Submit ) 2 If you walk west toward the back of the train, with a speed of 3.1 m/s with respect to the train, what is your velocity with respect to the ground? 7.9 m/s east Submit 3) Your friend is sitting on another train traveling west at 10 m/s. As you walk toward the back of your train at 3.1 m/s, what is your velocity with respect to your friend? 2.1 m/s east Submit Your submissions: 2.1 Computed value: 2.1 Feedback: X Submitted: Thursday, October 19 at 5:11 AM

Explanation / Answer

speed of train = 11 m/s

friend train speed = 10 m/s

backward speed in a train = 3.1 m/s

relative velocity of train in a person with respect to his train = 3.1-11 = -7.9 m/s

velocity with respect to friend is = 10 - (-7.9)

                                              = 17.9 m/s

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