Physics · Circular Motion
Railway tracks are banked on curves so that:
- 1The vertical component of the normal force balances the gravity perfectly
- 2The train may not fly off due to centrifugal force
- 3The necessary centripetal force is obtained from the horizontal component of the normal force exerted by the rails✓
- 4No frictional force is produced between tracks and wheels
Correct answer
The necessary centripetal force is obtained from the horizontal component of the normal force exerted by the rails
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