A butterfly's position is given by x = 0.22t² + 5.5t + 23 and y = 0.17t² + 7.4t + 28. Find its velocity at t=15s.
University of Ilorin PHY101 2025B past question
- 12.1 m/s
- 15.4 m/s
- 18.7 m/s
- 21.2 m/s
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