Question

The net force acting on a moving object is non-zero, Identify which of the following condition is true about the object:

• A. at rest
• B. gaining mass
• C. losing mass
• D. accelerating
• E. moving at constant velocity

Answer 1

Answer: (D)

accelerating

Second law of Newton states that net force on a body is directly proportional to the rate of change momentum , which gives

$F=dp/dt=mdv/dt$

as $F$ is non-zero , it means $dv$ is also non-zero ,therefore velocity is changing i.e. object is accelerating.