\[ v_{1}=\sqrt{2 g h}, \quad v_{1}= \] 4. Запишите значение скорости шарика №2 после удара \( v_{2}= \)

Sample Problems: Calculating Torque Two children are sitting on a see-saw. The see-saw has a mass of 22 kg and measures 9 m in length. The pivot is placed off center and is 3.0 m from one end. The boy has a mass of 70 ks and sits 2.5 m from the pivot on the short side. The gind has a mass of 30 kg and will sit on the long side. Where should the girl sit in order to balance the see-saw.

3. Рассчитайте скорость шарика №1 в момент удара с шариком №2 \[ v_{1}=\sqrt{2 g h}, \quad v_{1}= \] 4. Запишите значение скорости шарика №2 после удара \( v_{7}= \)

\[ v_{1}=\sqrt{2 g h}, \quad v_{1}= \] 4. Запишите значение скорости шарика №2 после удара \( v_{2}= \)

IP Suppose the pendulum bob in the figure(Eigure 1) has a mass of 0.33 kg and is moving to the right at point B with a speed of \( 3.0 \mathrm{~m} / \mathrm{s} \). Air resistance is negligible. Figure

An experiment is done to compare the initial speed of bullets fired from different handguns: a 9.0 mm and a .44 caliber. The guns are fired into a 10 - kg pendulum bob of length \( L \). Assume that the 9.0 -mm bullet has a mass of 6.0 g and the .44 -caliber bullet has a mass of 12 g . If the 9.0 - mm bullet causes the pendulum to swing to a maximum angular displacement of \( 4.3^{\circ} \) and the .44 -caliber bullet causes a displacement of \( 10.1^{\circ} \), find the ratio of th initial speed of the 9.0 -mm bullet to the speed of the .44 -caliber bullet, \( \left(v_{0}\right) 9.0 /\left(v_{0}\right)_{44} \) - Express your answer numerically. View Available Hint(s) Submit