Question

A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the building at a speed of 2.3 m/s, how fast is the length of his shadow on the building decreasing when he is 4 m from the building? (Round your answer to one decimal place.)

Answer 1

Answer: The length of his shadow on the building is decreasing at a rate of 0.86 m/s

Step-by-step explanation: Please see the attachments below