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Q. A horse canters away from its trainer in a straight line moving 130m away in 14s. It then turns abruptly and canters back in 12 s. What is its average velocity (in m/s) for the complete trip? Use away from the trainer as positive x direction.

Q. An object of length 3 cm is inside a plastic block with index of refraction 1.40. If the object is viewed through the top surface of block at a non-zero angle from the normal, where is an object relative to its image?

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