When two forces act on an object in opposite directions, the net force determines the object's motion. Which modal verb is appropriate to express the possibility of the object moving in a particular direction? A. The object must move in that direction. B. The object should move in that ...
Two forces, 30 N and 40 N, act on an object at an angle of 90 degrees to each other. What is the magnitude of the resultant force? A. 50 N B. 70 N C. 10 N D. 10√7 N 相关知识点: 试题来源: 解析 A。根据勾股定理,合力大小为 √(30² + 40²) = 50 N 。
Two forces act on an object of massM=3.00kgas shown in the figure. Because of these forces, the object experiences an acceleration ofa=8.00ms2in the positivex-direction. If θ1=30.0°,calculate the magnitude of vec(F)2...
When two equal and opposite forces act on an object, the object is said to be in a state of ___. A. motion. B. acceleration. C. equilibrium. D. deformation. 相关知识点: 试题来源: 解析 C。原因:当两个大小相等方向相反的力作用在物体上时,物体处于平衡状态。A 选项运动不符合这种情况;B...
25. Two equal forces acting on an object in opposite directions will be in equilibrium D A only if they act on the same point on the object. B if they are separated by a distance. C when they are balanced by a third force. D when their moments about the same point are equal. 相...
Two forces of magnitude 40 newtons (N) and 60 N act on an object at angles of 30° and -45° with the positive x-axis, as shown in the figure. Find the direction and magnitude of the resultant force; that is, find _1+_2. 相关知识点: 试题来源: 解析 =(20√3+30√2)+(...
10 When two equal and opposite forces act on an object moving with constant velocity, what will happen to the moving object? D A The object will move faster as it was already moving. B The object will move slower due to the equal and opposite forces. C The object will stop immediately...
结果1 题目 Two forces, F1 and F2, act on a particle of mass m. Find the acceleration of the particle, a m s-2,given that:F_1=4jN,F_2=(-2i+5j)N,m=1.5kg 相关知识点: 试题来源: 解析 (-4/3i+6j)ms^(-2) 反馈 收藏 ...
A. It moves in the direction of the stronger force. B. It moves in the direction of the weaker force. C. It remains stationary. D. It moves at a constant speed. 相关知识点: 试题来源: 解析 C。解析:当两个大小相等方向相反的力作用在一个物体上时,物体所受合力为零,保持静止状态。选项 ...
百度试题 结果1 题目3 Two forces act on a circular disc as shown.3N4N Which diagram shows the line of action of the resultant force? A AB CD5N5N一5N●5N● 相关知识点: 试题来源: 解析 A 反馈 收藏