Question

A body of mass 2 kg is moving on a smooth floor in straight line with a uniform velocity of 10 m/s. Resultant force acting on the body is:

• A. 20N
• B. 10N
• C. 2N
• D. zero

Answer 1

The correct option is D

zero

Step-1: Given data

Mass of body $m=2kg$.

velocity $v=10\raisebox{1ex}{$m$}\!\left/ \!\raisebox{-1ex}{$s$}\right.$.

Step-2: Finding the acceleration

Acceleration is the rate of change of velocity, but it is given that body is moving with uniform velocity, so acceleration will be zero. Hence force will be zero.

Hence the correct option is (d).