Final answer:
The statement is false. When a rocket is launched into space, it is not traveling in a straight line until it is acted on by another force. The rocket is subject to Earth's gravitational pull and will continue to experience acceleration due to gravity until it escapes the Earth's gravitational field.
Step-by-step explanation:
b. False
The statement is false. When a rocket is launched into space, it is not traveling in a straight line until it is acted on by another force. The rocket is subject to Earth's gravitational pull and will continue to experience acceleration due to gravity until it escapes the Earth's gravitational field. This means that the rocket will follow a curved trajectory rather than a straight line.