Asked by Rohan arora
trainA is moving at speed of 115 km/hr on a track on the same track 100 m away a trainB is moving at speed 25km/hr what should be the least retardation of trainA so that it doesn't collide? My answer is coming as 63 km/he but it's wrong please help?
Answers
Answered by
Henry
V1 = 115km/h = 115,000m/3600s = 31.94 m/s.
V2 = 25km/h = 25,000/3600s = 6.94 m/s.
V2^2 = V1^2 + 2a*d.
d = 100 m., a = ?.
Retardation is negative acceleration. Therefore, "a" will be negative.
V2 = 25km/h = 25,000/3600s = 6.94 m/s.
V2^2 = V1^2 + 2a*d.
d = 100 m., a = ?.
Retardation is negative acceleration. Therefore, "a" will be negative.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.