When you see fireworks, why do you see the blast before you hear the sound?

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

Juliette sets the initial velocity to +10 m/s, the acceleration to zero, and clicks “start.” how can shakina describe the subsequent motion of the car juliette controls?

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?