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While John is traveling along a straight interstate highway, he notices that the mile marker reads 245 km. John travels until he reaches the 135 km marker and then retraces his path to the 176 km marker. What is John’s resultant displacement from the 245 km marker? Answer in units of km.

Respuesta :

Answer:Displacement =69 km

Explanation:

Given

First John notices 245 km marker i.e. he is 245 away from destination.

John travels until he reach 135 km marker i.e. he is 135 km away from destination.

After that he retraces his path to reach 176 km marker

so his resultant displacement is i.e. shortest distance between initial and final point is 245-176 =69 km

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