Answer: (C) in accelerated motion
The boy is moving constantly at a speed of 10 m/s and since the direction is the same therefore the boy is moving at an accelerated motion.
- The rate at which the velocity changes is called acceleration.
- Velocity is a vector quantity, and a change in velocity can be caused by a change in magnitude, direction, or both.
- The boy is going at a constant speed, but his velocity is changing, therefore he is in accelerated motion.