Mathematics · Rates of Change
A rod AB, 13 feet long, moves with its ends A and B on two perpendicular lines OX and OY respectively. When A is 5 feet from O, it is moving away from O at the rate of 3 feet/sec. At this instant, end B is moving at the rate of:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 145 ft/sec downwards
- 254 ft/sec downwards✓
- 345 ft/sec upwards
- 454 ft/sec upwards
Correct answer
54 ft/sec downwards
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