Question

An object of mass $\text{10 kg}$ is sliding with a constant velocity of $\text{2 m/s}$ on a frictionless horizontal table. What is the force required to keep the object moving with the same velocity?

• A. $\text{0 N}$
• B. $\text{10 N}$
• C. $\text{20 N}$
• D. $\text{100 N}$

Answer 1

The correct option is A $\text{0 N}$

According to Newton’s First Law of Motion, an object remains in a state of rest or of uniform motion in a straight line unless compelled to change that state by an external force.
Since the object is moving on a frictionless table, no force is required to keep the object moving with the same velocity.