1.

Sees a bus 1 km aheadof him moving with velocityof 10m/s with what speedthe scooterist should move so as to overtake the bus in 100 s

Answer»

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Given:

t = 100s,

s = 1000m;

V = 10m/s.

But this is the RELATIVE speed with respect to the bus

To Find:

speed of the scooterist so that he should move so as to overtake the bus in 100 s.

Solution:

Vs - actual VELOCITY of speed of the the scooterist so that he should move so as to overtake the bus in 100 s;

Vb = velocity of bus;

v = relative velocity of SCOOTER with respect to bus.

v = Vs-Vb as both busand scooter are MOVING in same direction.

10 = Vs-10;

10 + 10 = vs

20 = vs

So,

Vs = 20m/s



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