• # question_answer A bus is moving with a velocity of $10\text{ }m/s$ on a straight road. A scooters wishes to overtake the bus in 100 seconds. If the bus is at a distance of 1 km from the scooters, at what velocity should the scooters chase the bus? A)  $50m/sec$                   B)  $40m/sec$C)  $30m/sec$                   D)  $20m/sec$

Let the scooterist velocity be v. Then$1000+(10\times 100)=v\times 100$ $\Rightarrow$ $100\,v=2000\Rightarrow v=\frac{2000}{100}=20m/s$