newton's first law   (TTS Sound)

The newton's_first_law has 1 Senses.

• first law of motion, newton's first law, newton's first law of motion
• a body remains at rest or in motion with a constant velocity unless acted upon by an external force
• 物体は、外からの力が加わらない限り、それまでと同じ速さで運動を続ける、あるいは静止したままである