Answer:
The particle will continue moving at constant velocity
Explanation:
When the particle encounters the second force of 10 N, the net force acting on the particle becomes zero, because the two forces are equal in magnitude but opposite in direction:

For Newton's second Law, the acceleration of the particle is proportional to the net force acting on it:

Therefore, since
, the acceleration is zero (a=0) and so the particle will keep a constant velocity.
Answer:
kinetic energy
Explanation:
Kinetic energy is energy in motion
Answer:
A reflection
Explanation:
Reflection – when a wave hits a surface, any part of the wave that cannot pass through the surface bounces back. This interaction with a surface is called reflection.
Another way to explain it is
Reflection occurs when waves bounce back from a surface they cannot pass through.