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A bird is tossing between two cars moving towards each other on a straight road. One car has a speed of 18 m/h while the other has the speed of 27 km/h. The bird starts moving from first car 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 covered by the bird? What is the total displacement of the bird?

Answers (1)

We can find out the relative speed of the cars by adding the speed of the two cars

= 27 + 18

= 45 km/hr

Time \; taken \: to \: meet = \frac{Distance \; between \; cars}{relative \; speed \; of \; the \; cars}

                                            =\frac{36}{45}=\frac{4}{5}  hours

Hence, the distance that the bird will cover in \frac{4}{5} hours =36(\frac{4}{5})=28.8\; km.

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