A bird is tossing (flying to and fro) 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 27km/h. The bird starts moving from first car towards the other and is moving with the speed of 36km/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?
A bird is tossing (flying to and fro) 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 27km/h. The bird starts moving from first car towards the other and is moving with the speed of 36km/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?
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1 Answer
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This is a short answer type question as classified in NCERT Exemplar
speed of first car = 18km/h
Speed of second car = 27km/hr relative with respect to each other is 18+27=45km/h
Distance between cars = 36km
Time = 36/45=0.8h
Distance covered by bird = 36 (0.8)=28.8km
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