试题来源: 解析 A。原因:物体静止时,处于平衡状态,合力为零。B 选项大于零会使物体运动;C 选项小于零也会使物体运动;D 选项无法确定不符合静止物体的受力情况。涉及的物理知识是平衡状态,英语阅读技巧是根据“object at rest”判断受力情况。反馈 收藏 ...
百度试题 结果1 题目英语翻译If the net force acting on an object increases,what happens to the acceleration of the object? 相关知识点: 试题来源: 解析 如果作用在一个物体上的合理增加,那么这个物体的加速度会发生什么变化?反馈 收藏
百度试题 结果1 题目When an object is in equilibrium, the net force acting on it is ___. A. zero B. one C. two D. three 相关知识点: 试题来源: 解析 A。物体处于平衡状态时,合力为零。所以选 zero。反馈 收藏
Newton's first law of motion explains that an object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an unbalanced net force. This means that understanding the net force acting on an object will help predict its motion....
To find the resultant force or net force acting on an object, follow the given instructions: Determine the horizontal and vertical components of all the individual forces by using the formula: Horizontal component – Fₓ = F cos θ Vertical component – Fᵧ = F sin θ Add the individual...
Question 5.3:Give the magnitude and direction of the net force acting on a stone of mass 0.1 kg,a) just after it is dropped from the window of a stationary train,b)just after it is dropped from the window of a train running at a constant velocity of 36 km/h,c) just after it is...
A car is moving with a constant velocity. What is the net force acting on the car? A. 0 N B. 10 N C. 20 N D. 30 N 相关知识点: 试题来源: 解析 A。解析:When an object is moving with constant velocity, the net force is zero as per Newton's first law. Options B, C and ...
A net forceacts on object A, and a net forceacts on object B. The mass of object B is twice the mass of object A, and the acceleration of object B is twice that of object A. Is it true thatis four times of?暂无答案更多“A net force [图] acts on object A, and a net force...
百度试题 题目It is the net force ___the body that causes acceleration. A.acted onB.acting inC.acting onD.acted in相关知识点: 试题来源: 解析 C 反馈 收藏
A jet airplane is flying on a level course at constant velocity. What is the net force on the plane?Free-Body Diagram:Diagramatic representations of the forces acting on an object are a big part of investigating balanced and imbalanced mechanical systems. Fo...