Civil Engineering - UPSC Civil Service Exam Questions - Discussion

41. 

A train starts from rest on a curved track of radius 800 m. Its speed increases uniformly and after 3 minutes it is 72 km/hr. Its normal acceleration after 2 minutes is

[A].
[B].
[C].
[D].

Answer: Option D

Explanation:

No answer description available for this question.

Bharat said: (Dec 27, 2017)  
Anybody solve this problem?

Kdm said: (Jun 28, 2021)  
After 3 minute = 72km/hr=20m/s.
3 x 60 = 20m/s.

By Unitary method;
1 second = 20/3x60(2) = 4/18.

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