Question

skill level beginning which of the following best describes the force causing a rocket to lift off? a reaction force b gravitational force c magnetic force d balanced force

Explanation:

The force that causes a rocket to lift - off is the reaction force. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. When the rocket expels hot gases downwards (action), there is an equal and opposite upward reaction force that propels the rocket upwards. Gravitational force pulls objects downwards, magnetic force acts between magnetic materials, and balanced forces result in no net acceleration.

Answer:

A. reaction force