MCQ
An electron is moving in a circle of radius $2 \,m$ with speed $4 \,m / s$ Find the acceleration of the electron. (in $m / s ^{2}$)
- ✓$8$
- B$4$
- C$16$
- D$10$
✓
Answer
Correct option: A.
$8$
a
The acceleration of the electron can be calculated as,
The acceleration of the electron can be calculated as,
$a=\frac{v^{2}}{r}$
$=\frac{(4)^{2}}{2}$
$=8 m / s ^{2}$
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