Question

how will the speed and direction of a ball moving on a smooth horizontal plane get affected if no external force is applied on it ?what assumption will you take here?​

Answer 1

Answer:

due to the force of the friction

Answer 2

There would be no acceleration if no force is given to a mass. This is how the speed and direction of a ball moving on a smooth horizontal plane get affected if no external force is applied on it

Explanation:

• If the ball is traveling on any surface and no force is applied to it, its velocity does not change (zero or nonzero). To modify velocity, force is required.
• Newton's first law, the law of inertia, states that things have a propensity to retain constant speed unless acted upon by a force. Acceleration and deceleration create changes in velocity.
• There would be no acceleration if no force is given to a mass, and the mass will continue to travel at the same velocity. Force causes acceleration. As a result, if an item feels no consequent force, there is no change in velocity.