A bird is tossing (flying to and fro) between two cars moving towards ...
Velocity of car A, vA = +27kmh−1
Velocity of car B, vB = −18kmh−1
Relative velocity of car A with respect to car B
=vA − vB = + 27kmh−1 (−18kmh−1) = 45kmh−1
Time taken by the two cars to meet = 36 km/45 km h-1 = 0.8
Thus, distance covered by the bird
= 36kmh−1 x 0.8h = 28.8km
A bird is tossing (flying to and fro) between two cars moving towards ...
One car has speed =27km/h
Other has the speed=18km/h
According to the problem, speed of first car=18km/h
Speed of second car=27km/h
∴ Relative speed of each car with respect to each other=18+27=45km/h
Distance between the cars=36km
∴ Time of meeting the cars (t)=DistancebetweenthecarRelativespeedofcars=3645=45h=0.8h
During this time period, Bird will continue to move from one car to another.
Speed of the bird(vb)=36km/h
Distance covered by the bird =vb×t=36×0.8=28.8km