¿que aceleracion producira una fuerza neta de 250N a un objeto de 20kg?

What is the difference between electrically neutral objects and electrically charged objects

Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?

Iwill give brainliest if you answer right : )