College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

تمرين 78

A wheeled car with a spring-loaded cannon fires a metal ball vertically (Fig.). If the vertical initial speed of the ball is 5.0 m/s as the cannon moves horizontally at a speed of 0.75 m/s, (a) how far from the launch point does the bail fall back into the cannon, and (b) what would happen if the cannon were accelerating

FIGURE A ballistics car See Exercise.