two buses start simultaneously towards each other from towns A and B which are 480km apart . it took first bus travelling from A to B 8 hrs and second bus travelling from B to A , 10 hrs.determine when the buses will meet after strting and at wht distance from A.

Asked by Sanmit Ratnaparkhi | 4th Sep, 2015, 11:58: PM

Expert Answer:

begin mathsize 12px style Here comma space Velocity space of space bus space straight A comma space straight v subscript straight A space equals 480 over 8 space equals space 60 space km divided by hr space Velocity space of space bus space straight B comma space straight v subscript straight B space equals space 480 over 10 equals space 48 space km divided by hr space space When space two space start space towards space each space other comma space their space relative space velocity space equals space straight v space equals space straight v subscript straight A space plus straight v subscript straight B space equals space 60 space plus 48 space equals 108 space km divided by hr space space Therefore comma space space the space time space when space the space buses space will space meet comma space straight t equals fraction numerator 480 over denominator 108 space end fraction space equals space 4.44 space hrs space Distance space from space the space bus space straight A space where space they space will space meet space equals space straight v subscript straight A space straight x space straight t space equals space 60 space straight x space 4.44 space equals space 266.40 space km end style

Answered by Yashvanti Jain | 5th Sep, 2015, 12:38: PM