1. [10] A 15-foot ladder slides down a wall. At the instant the ladder's top is 12 feet high, it descends at 1.5 feet pe

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1 10 A 15 Foot Ladder Slides Down A Wall At The Instant The Ladder S Top Is 12 Feet High It Descends At 1 5 Feet Pe 1 (88.7 KiB) Viewed 62 times

1. [10] A 15-foot ladder slides down a wall. At the instant the ladder's top is 12 feet high, it descends at 1.5 feet per second. What is the ladder's base doing at that instant? 1. 4 2. [10] A 2-meter tall man walks away from a 12-meter lamppost at 6 meters per second. How is his shadow changing when he is 20 meters from the lamppost? 2. 3. [10] A cube's edge increases from 20 cm to 20.1 cm. (a) Please use differentials to estimate the corresponding change in the cube's volume. (b) What is the exact change? 3.(a) dv= 3.(b) 4V=