When Marissa releases Marble A from the slingshot, it will move in the direction and at the angle she launched it. The motion of the marble will be affected by the force applied by Marissa when she released the slingshot. The force will propel the marble forward in the direction it was launched. rephrase like a 9th grader shorten
When Marissa lets go of the slingshot, Marble A will go in the same direction she aimed it. The marble's movement is influenced by the force Marissa used to release the slingshot. This force will make the marble go forward in the direction it was launched.
