The acceleration(加速度) is directly proportional to(正比于), and in the same direction as, the applied force(外力).
举一反三
- When a force is applied to the spinning gyro, the rotor moves in a same direction of the applied force.
- The direction of the acceleration(加速度), as has been pointed out, is the same as that of the change in velocity.
- A particle is subjected to forces of [img=18x22]1803a46e41745d3.png[/img], [img=18x22]1803a46e4a7b58d.png[/img], ¼ and [img=20x22]1803a46e54cefd0.png[/img], and the resultant of these forces is [img=78x36]1803a46e5d7bb8f.png[/img]. Which statement is correct? A: The moving direction of the particle must be the same as that of the resultant force [img=14x19]1803a46e65bb7b5.png[/img]. B: The greater the resultant force [img=14x19]1803a46e6dfa97e.png[/img], the greater the speed of the particle. C: The greater the resultant force [img=14x19]1803a46e772e05b.png[/img], the greater the acceleration of the particle. D: The acceleration direction of the particle may or may not be the same as that of the resultant force [img=14x19]1803a46e772e05b.png[/img].
- The critical pressure of the compression bar is directly proportional to the elastic modulus of the material
- 不论物体做哪一种运动，加速度的方向总是跟合外力的方向____．在加速直线运动中，加速度的方向与速度方向____；在减速直线运动中，加速度的方向与速度方向____．