Explore BrainMass

Explore BrainMass

    Related rates

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    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 1.6 m/s, how fast is the length of his shadow on the building decreasing when he is 4 m from the building?

    © BrainMass Inc. brainmass.com February 24, 2021, 2:31 pm ad1c9bdddf

    Solution Preview

    We assume x shows the distance between the man and the building. Also let's ...

    Solution Summary

    This shows how to find the rate of change of the length of a shadow on a building.