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A spotlight on the ground is shining on a wall16m 16m away. If a woman 2m tall walks from the spotlight toward the building at

A spotlight on the ground is shining on a wall16m

16m away. If a woman 2m tall walks from the spotlight toward the building at a speed of1.2m/s,

how fast is the length of her shadow on the building decreasing when she is2mfrom the building?

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