Technician A says Einstein's law of motion states that the velocity of a body remains constant unless the body is acted upon by an external force. Technician B says hydraulics is the principle force used in a braking system. Who is correct?

Question

Quizplus · Accepted Answer

Technician A is referring to Newton's first law of motion, often attributed to Einstein in error, but the statement itself is correct regarding motion. Technician B is correct because hydraulics is indeed the principle force used in most vehicle braking systems, utilizing fluid pressure to transfer force from the brake pedal to the brake pads or shoes.

Technician a Says Einstein's Law of Motion States That the Velocity