2022 Easy
Single Choice
Marks: 4.00 / −1.00
If \( F = ma \), find the acceleration \( a \) when \( F = 10\,\text{N} \) and \( m = 2\,\text{kg} \).
- A. \( 5\,\text{m/s}^2 \)
- B. \( 20\,\text{m/s}^2 \)
- C. \( 2\,\text{m/s}^2 \)
- D. \( 8\,\text{m/s}^2 \)
Correct Option:
- A. \( 5\,\text{m/s}^2 \) ✓ Correct
- B. \( 20\,\text{m/s}^2 \)
- C. \( 2\,\text{m/s}^2 \)
- D. \( 8\,\text{m/s}^2 \)
Hint: Use Newton's second law directly.
Solution:
Newton's second law: \( a = \frac{F}{m} = \frac{10}{2} = 5\,\text{m/s}^2 \).
newton-laws
kinematics