Cyclist Joe accelerates as he rides away. from a stop sign. His velocity graph over a 5 second period (in units of feet/sec) is shown in 16 12 / 8 4 20 1 2 3 4 5 Compute best possible lower estimate for the distance he travels over this period when di- viding [0, 5] into 5 equal subintervals and us- ing endpoint sample points. 1. 43 ft distance 2. 45 ft distance 3. 51 ft distance 4. 49 ft distance 5. 47 ft distance

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