QUESTION IMAGE
Question
- how far apart were runners a and b at t = 20.0 s? position v. time position (m) 200 150 100 50 -50 -100 0 15 25 35 45 55 time (s) a b approximately 15 m approximately 30 m approximately 50 m approximately 75 m clear all
Step1: Leer la posición de A en t = 20 s
Observando la gráfica, la posición de A en t = 20 s es de 100 m.
Step2: Leer la posición de B en t = 20 s
Observando la gráfica, la posición de B en t = 20 s es de 70 m.
Step3: Calcular la distancia entre A y B
Restamos las posiciones: $d=100 - 70=30$ m.
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approximately 30 m