newton’s second law

Question

A 6 kg block on a smooth horizontal surface is pulled by a constant horizontal force producing an acceleration of 3 m/s². What is the magnitude of the applied force?

RankGuru · Accepted Answer

1. **Newton’s Second Law**: The net force acting on an object is equal to the product of its mass and its acceleration.
2. **Mathematical Formula**: $F = m \cdot a$.
3. **Identify Given Data**:
   - Mass ($m$) $= 6$ kg
   - Acceleration ($a$) $= 3 	ext{ m/s}^2$
4. **Calculation**:
   - $F = 6 	ext{ kg} 	imes 3 	ext{ m/s}^2$
   - $F = 18$ N.
5. **Note**: Since the surface is 'smooth', there is no friction to subtract from the applied force.

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newton’s second law

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