Can an object move along a curved path if no force acts on it?

Can there be displacement of an object in the absence of any force acting on it?

Can there be displacement of an object in the absence of any force acting on it? Think. Discuss this question with your friends and teacher.

An object thrown at a certain angle to the ground moves in a curved path and falls back to the ground. The initial and the final points of the path of the object lie on the same horizontal line. What is the work done by the force of gravity on the object?

When a body moves in a circular path, no work is done by the force since,

A proton beam is moving along the direction of a magnetic field. What force acts on the proton beam ?