Distance covered by the bus =speed*time D=10*100 D=1000m
Total distance the scooter has to cover is 2000m in 100sec to reach the bus Speed =d/t S=2000/100 S=20m/sec
I think this is the answer
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Samarth N Bani . answered this
Slove using relative motion
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Lopamudra Manna answered this
In 100 sec bus will travel another 1000m so total dist traveled by the scooterist to
overtake bus =2000m
V of scooter to overtake bus = 2000m
/100s =20m/s