Question

If a particle moves with a constant velocity,

• A. Its acceleration is positive
• B. Its acceleration is negative
• C. Its acceleration is zero
• D. Its speed is zero

Answer 1

The correct option is C Its acceleration is zero

Acceleration is the rate of change of velocity
$a=\frac{dv}{dt}$
If the particle has to move with constant velocity then
$\Rightarrow dv=0$
$\therefore a=0$
Acceleration must be $0$