Question

a ball is rolled on a frictionaless surface and no other force acts on it. will it speed decreases,increases or remain unchanged​

Answer 1

Explanation:

AS THE SURFACE IS FRICTIONLESS AND NO FORCE ACTS ON IT THEN ITS SPEED WILL DECREASE

COZ. OF RETARDATION AND THE TIME WILL COME THAT THE BALL WILL BECOME MOTIONLESS

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Answer 2

Explanation:

If any of the force is not acting on the ball which was rolled then it's velocity will remain unchanged. According to Newton's first law.a body in motion continues to be in motion and a body at rest continues to be in rest until and unless an external force is applies on the body