The distance between two stations is 300 km. Two motorcyclist start simultaneously from these stations and move towards each other. The speed of one of them is 7 km per hour more than that of the other. If the distance between them after 2 hours of their start is 34 kilometre find the speed of each motorcyclist.
please tell me step by step please.!.
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Step-by-step explanation:
According to the question after time 2h
300=(v+7)2+34+v2 [dist= velocity× time]
300=2v+14+34+2v
300=4v+48
4v=252
v=63 km/h
Check: Put v=63 in the equation then RHS converts to
(63+7)2+34+63×2
70×2+34+63×2
140+34+126
300
Which is equal to LHS.
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