A particle is moving in a circular path of radius $r$ under the action of a force $F$. If at an instant velocity of particle is $v$, and speed of particle is increasing, then
A particle is moving in a circular path of radius $r$ under the action of a force $F$. If at an instant velocity of particle is $v$, and speed of particle is increasing, then
- A
$\vec{F} \cdot \vec{v} > 0$
- B
$\vec{F} \cdot \vec{v}=0$
- C
$\vec{F} \cdot \vec{v} < 0$
- D
$\vec{F} \cdot \vec{v} \geq 0$
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