Question

An object of mass 4kg is sliding with a constant velocity of 8m/S2 on a frictionless horizontal table. The force required to keep the object moving with the same velocity is:

(1.0)Marks

Answer:

64N

0N

4N

16N​

Answer 1

Answer:

0 N as none of the external force is required to keep a body moving uniformly.

Explanation:

As stated by Newton's law of inertia, because of the body is moving at constant velocity, it's acceleration is zero ( as the velocity is not changing with time). Therefore, no external force is acting on the body and in the absence of external force, the body will continue to move at the same speed, so no force is required to keep the body in uniform motion (same speed).