Question

An object of mass 2 kg is sliding with a constant velocity of 4 $m{s}^{-1}$ on a frictionless horizontal table. The force required to keep the object moving with the same velocity is

• A. 32 N
• B. 8 N
• C. 2 N
• D. 0 N

Answer 1

The correct option is D

0 N

Since the object is moving on the frictionless surface, hence there is no force which will oppose its motion. The object will move with constant velocity forever and no force is required to keep its velocity constant.