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A bird is tossing (flying to and fro 0 b...

A bird is tossing (flying to and fro 0 between two cars moving towards each other on a straight road. On car has a speed of `18 km //h` while the other has the speed of ` 27 km //h`. The bird starts moving from first caer towards the other and is moving with the speed of ` 36 km //h` and when the two cars were separated by ` 36 km`. What is the total distance comered by the bird ? What is the total displacement of the bird ?

Text Solution

Verified by Experts

Relative velocity of each car w.r.t. another car ` =27 + 27 =54 km //h`
Relative velocity of bird w.r.t. a car approaching bird ` =18 + 27 =45 km //h`
Time to meet the bird with approaching car, ` t= (36 km ) /(45 km//h) = 4/5 =0. 8 h`
Total distance covered by bird ` =v-b t= 36 xx 0.s =28 .8 km` .
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