Coupboth object and mirror moves away from each other with a speed20 m

1.	Coupboth object and mirror moves away from each other with a speed20 m/s, thenThe speed of the image1) 60 m/s2) 80 m/s3) 40 m/s4) 20 m/s7.
Answer» ANSWER: I think this should be it Explanation: Suppose that at t zero, the object is 10 meters away from the mirror. The image WOULD also be at 10 m, and therefore the image will be 20 meters from the object. At t = 1 second, the object would MOVE 20 meters and the mirror would move 20 meters and the object distance now would be: 10 + 20 + 20 = 50 meters. The image distance would be 50 meters from the mirror and 50 + 50 = 100 m from the object. The image position would have moved 100 - 20 = 80 meters in one second (as measured from the object). Therefore, the SPEED of the image is 80 m/s

Coupboth object and mirror moves away from each other with a speed20 m/s, thenThe speed of the image1) 60 m/s2) 80 m/s3) 40 m/s4) 20 m/s7.

Answer»

I think this should be it

Explanation:

Suppose that at t zero, the object is 10 meters away from the mirror. The image WOULD also be at 10 m, and therefore the image will be 20 meters from the object. At t = 1 second, the object would MOVE 20 meters and the mirror would move 20 meters and the object distance now would be: 10 + 20 + 20 = 50 meters. The image distance would be 50 meters from the mirror and 50 + 50 = 100 m from the object. The image position would have moved 100 - 20 = 80 meters in one second (as measured from the object). Therefore, the SPEED of the image is 80 m/s

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