Question
Thu July 12, 2012 By:
 

a train is moving on a circular curve OF RADIUS 1500M AT THE RATE of 66km per hour. through what angle has it turned in 10seconds?

Expert Reply
Fri July 13, 2012
Given : a circle with radius r = 1500 m
a train is moving on a circular curve at rate of 66km per hour
therefore speed = 66 km per hr = 66*1000 / 3600
=18.33 m per sec
1 sec the distance covered= 18.33 m
10 sec................................= 18.333*10= 183.33m
 
now as we know theta (i.e angle) = arc/ radius 
                                                  = 183.33 / 1500          =0.122 radians is the required angle covered Answer
 


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