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-2 m/s^2
1 hr=60 min or 60 min=1 hr or 1 min=1/60 hr ==>13min=13/60hr now, speed = distance/time = 2.6X13/60 = 0.564 km/hr or 0.564X5/18 m/s = 0.156 m/s.
1 km = 1000 metres. Therefore 60 sq km = 60 km*km = 60 *1000 m *1000 m = 60 million sq metres.
6k meaning 6 kilometers = 6000 meters. 35 minutes = 60 (sec/min) * 35 min = 2100 sec, then add 30 sec = 2130 sec 6000 m / 2130 sec = 2.8169 m/s 1 m/s is 2.2369 miles per hour. So 2.8169 m/s * 2.2369 [MPH/(m/s)]= 6.3011 MPH
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