| UNESP 2026 | Q79 - A FIGURA 1 MOSTRA UM VEÍCULO EM MARCHA À RÉ COM VELOCIDADE CONSTANTE

I am Felipe Filatte, a teacher and pedagogical coordinator, specializing in ENEM and university entrance exams. Here you will find commented solutions, focusing on understanding the reasoning and gaining confidence in the exam. 🎁 FREE GIFT FOR THOSE PREPARING FOR THE ENEM ENEM TRI Calculator Spreadsheet https://docs.google.com/spreadsheets/... STATEMENT Figure 1 shows a vehicle reversing at a constant speed v, approaching a wall in a direction perpendicular to it. In this situation, the left external convex spherical mirror of the vehicle is at a distance d from the wall. Figure 2 represents a top view of this mirror, the wall, and the image of the wall at two instants, t0 = 0 and t1 = 2 s. At time t0, the mirror is at a distance d0 from the wall, and the image of the wall is 8/11 m from the mirror. At time t1, the mirror is at a distance d1 from the wall, and the image of the wall is 20/29 m from the mirror. Knowing that the focal length of this mirror is f = -0.8 m, the magnitude of the velocity v with which the car approaches the wall is: A) 0.5 m/s. B) 1.2 m/s. C) 1.5 m/s. D) 0.8 m/s. E) 1.0 m/s. Answer Key ✅ Option C #unesp #unesp2026 #commentedquestions #physics #optics #geometricoptics #sphericalmirror #convexmirror #gauss'sequation #averagevelocity #entranceexams #medicine #professorfilatte #enem #tri