The Top of a Ladder Slides Down a Vertical Wall $0.15 \mathrm {~m} / \mathrm { s }$

question 46

Multiple Choice

The top of a ladder slides down a vertical wall at a rate of $0.15 \mathrm {~m} / \mathrm { s }$ . At the moment when the bottom of the ladder is $1.5 \mathrm {~m}$ from the wall, it slides away from the wall at a rate of $0.3 \mathrm {~m} / \mathrm { s }$ . How long is the ladder?

• A) \(3.9 \mathrm {~m}\)
• B) \(2.9 \mathrm {~m}\)
• C) \(4.4 \mathrm {~m}\)
• D) \(3.4 \mathrm {~m}\)
• E) \(2.4 \mathrm {~m}\)

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