高考物理：牛顿运动定律
A high-school physics practice set on Newton's laws of motion: the three laws, inertia, action-reaction pairs, connected bodies, and basic dynamics.
- Apply Newton's second law F=ma to find acceleration
- Understand mass as the sole measure of an object's inertia
- Distinguish action-reaction pairs from a pair of balanced forces
- Solve connected-body problems using the whole-system method then isolate one body
高考物理力学专题：牛顿三定律、惯性、作用力与反作用力、连接体和简单动力学。
示例问题
一个质量为 $m=2\text{kg}$ 的物体静止在光滑水平面上，受到一个水平向右的恒力 $F=6\text{N}$ 作用。根据牛顿第二定律，该物体的加速度大小为多少？
- $2\text{m/s}^2$
- $3\text{m/s}^2$
- $4\text{m/s}^2$
- $12\text{m/s}^2$
查看答案
$3\text{m/s}^2$
根据牛顿第二定律 $F=ma$，加速度 $a = \frac{F}{m} = \frac{6\text{N}}{2\text{kg}} = 3\text{m/s}^2$。