Answer:
Centripetal force
Step-by-step explanation:
The force that keeps a bottle moving round and round in circular motion is centripetal force.
Centripetal force is an inward directed force that keeps a body in circular motion. This force keeps a body moving along a circular path.
To find the force, we use the expression below;
F =
F is the centripetal force
m is the mass of the body
v is the velocity
r is the radius