6. A man takes 1 h 20 min to cover a distance of 8 km.
(1) How far does he go in 30 s? (ii) How much time will he take to walk 6.5 km?
Speed, Distance, Time
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Step-by-step explanation:
Speed=distance/time.
Case-1: d=8km.
t=1h 20m=1+0.3=1.3hours.
S=8/1.3=6.1km/h.
(1).t=30s, s=6.1km/h=1.69m/s.
d=s×t
=>1.69×30
d=50.7m.
(2).d=6.5km. s=6.1km/h.
t=d/s
=>6.5/6.1
t=1.06h.
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