A machine gun fires n bullets per second with speed u and mass of each bullet is m.If bullets hit a wall and rebounds with same speed then force acting on the
Science People! Twitterren: "What is speed? It's a distance over some amount of time! Take this rocket for example. It's moving through space 1000 meters every 10 seconds. It's speed is 100
![The speed of light is about 300,000,000 meters per second. That's about 3 * 108 meters per second. - Brainly.com The speed of light is about 300,000,000 meters per second. That's about 3 * 108 meters per second. - Brainly.com](https://us-static.z-dn.net/files/d4e/533415ae5561be80061fdf5f1a009a97.png)