A 60 g projectile was fired towards two blocks standing on a horizontal surface with a kinetic friction coefficient of 0.50. The bullet pierced through the 8 kg block and stuck into the 6 kg block. The blocks stopped after sliding as shown in the figure At what speed did the bullet hit the 8kg block?

A 60 g projectile was fired towards two blocks standing on a horizontal surface with a kinetic friction coefficient of 0.50. The bullet pierced through the 8 kg block and stuck into the 6 kg block. The blocks stopped after sliding as shown in the figure At what speed did the bullet hit the 8kg block?