Question

The rear view mirror of a car is a plane mirror. A driver is reversing his car at a speed of 2 m/s. The driver sees in his rear view mirror the image of a truck parked behind his car. The speed at which the image of the truck appears to approach the driver will be

(i) 1 m/s
(ii) 2 m/s
(iv) 8 m/s
(iii) 4 m/s​

Answer 1

Answer:

4

Explanation:

The speed of the car is 2 m/s. the distance between the car and truck will decrease at double rate this is because the image of the truck will travel a distancetwice the distance travelled by the car in equal time.

hence 2×2=4m/s