Réponse :
TUN rectangle en U
Pythagore
TN²=TU²+UN²
TN² = 130²+144²
TN =V37636=194m
2) 155+234+194+25+90=698m
3) 698*3=2094m
4)v=2094/642=3,2570..m/sec ≈3,26m/sec
5) V richmond :
15 km =15 000m
55min11sec= 55*60+11=3311sec
v = 15 000/3311=4,5303..=4,53m/sec
Terri ne pourra pas faire mieux
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Réponse :
TUN rectangle en U
Pythagore
TN²=TU²+UN²
TN² = 130²+144²
TN =V37636=194m
2) 155+234+194+25+90=698m
3) 698*3=2094m
4)v=2094/642=3,2570..m/sec ≈3,26m/sec
5) V richmond :
15 km =15 000m
55min11sec= 55*60+11=3311sec
v = 15 000/3311=4,5303..=4,53m/sec
Terri ne pourra pas faire mieux