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A car is parked at the roadside. A truck passes by it, at a speed of 5m/s. What would be the speed at which the image of the car appears to move away from the truck, as viewed in the rear-view mirror of the truck? i) 1 m/s ii) 2.5 m/s iii) 5 m/s iv) 10 m/s |
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Answer» ivExplanation:We are given that the SPEED of the car is 2 m/s which IMPLIES, the car is approaching the truck with a speed of 2 m/s.Hence the speed at which the image of the truck APPEARS to APPROACH the DRIVER will be: 2\times2 = 4 m/s |
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