Question

Auston Mattlew, when not playing hockey, i9s also a sharpshooter and aforensic expert. On days when he doent play hockey, he practices his shooting skills by firing a bullet. auston matthew notices the pendulum moved to 10 cm above the original position ( please see the picture for more details )

Answer 1

$$v=\sqrt{2(9.8)(0.1)}=1.4\frac{m}{s}$$