Physics · LAWS OF MOTION

Two identical balls strike a rigid wall with the same speed \( u \). Ball A hits normally, while Ball B hits at an angle of \( 30^\circ \) with the normal and reflects at the same angle without change in speed. The ratio of the magnitudes of impulse imparted to Ball A and Ball B is:

1. A
   \( 2 : \sqrt{3} \)
2. B
   \( 1 : \sqrt{3} \)
3. C
   \( 1 : 2 \)
4. D
   \( \sqrt{3} : 1 \)