Question

a railway train is travelling on a curve of 750m radius

Answer 1

traveling in a railway to 750m

750-150=600 ☠☠☠

Answer 2

Here,
Radius = 750 m.
Speed = 30 kmph  Time= 10 sec
Distance =speed x time
=30 x (10/3600)
=1/12 km
s=r x angle
Angle= (1/12)/(750/1000)
=1/9 rads