1.

A car is moving towards a plane mirror at a speed of 30m/sec. then the relative velocity of its image with respect to the car will be;15m/s45m/s60m/s30m/s​

Answer»

Answer:

x’ = -x, where x is POSITION of observer and x’ is position of the image.

With mirror at 0.

So, if dx/DT = 2 m/s, dx’/dt = -dx/dt = - 30m/s.

using the classical formula for relative speed,

VREL = dx’/dt - dx/dt = -2dx/dt = -60m/s.

So, the image is approaching the observer at 60 m/s.

Hence option B is the right answer

Explanation:

answer is 60 m/ s

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