In a ballistic pendulum, a spring pushes a ball from rest It ies through the air and sticks in the base of a pendlum that swings upwards. Which of the following equations correctly represents the velocitye of the pendulum after the ball has collided with i? A. E. 5. In a balitic pendulum, a spring pushos a ball from rest t lles through the air and sticks in the base of a pendlum that swings upwards Given that the ball and pendulum reach a maximum angle of 45 degrees, the pendulum is 30 cm long, the mass of the ball is 76 g, and th mass of the pendulum is 250 g, calculate the speed of the ball after it has left the spring but before it hits the pendulum. Do not include th units in your response.