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 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...
22: Two cable forces are acting on an eyebolt anchor, and can be directionally defined using the position coordinates shown. Determine the resultant force of these two cable forces acting on the eyebolt anchor atA,as well as the coordinate ...
2 Fig. 2.1 shows the top view of a point object acted upon by two forces. The forces are acting in the horizontal plane.40N55 N136°Fig. 2.1(a) In the space provided below, use a scaled diagram to calculate the magnitude of the resultant force acting on the object.(b) The object ...
B。解析:For example, in a collision between two objects, as long as there are no external forces acting on the system, the total momentum of the two objects before the collision will be the same as the total momentum after the collision.(例如,在两个物体的碰撞中,只要没有外力作用在系统上...
The forces and couples acting on two nearly touching spheres in low-Reynolds-number flow, J. Appl. Math. Phys. (ZAMP) 35, 634- 641.Jeffrey, D.J., Onishi, Y.: The forces and couples acting on two nearly touching spheres in low-reynolds-number flow. Zeitschrift für angewandte ...
A system of forces acting on a body is in equilibrium if: 1. **The vector sum of the forces is zero.** This means the net force acting on the body is zero, ensuring no linear acceleration. 2. **The sum of the moments of the forces about any point is zero.** This means the ...
Two equal and opposite forces acting along two non-coincident parallel straight lines in a body cannot be combined to obtain a single resultant force . Any two such forces acting on a body constitute a couple . The arm of the couple is the perpendicular distance between their lines of action...
Tensile stress is a result of two forces acting in ___. A.opposite directions on the same line,tending to pull the material apart B.opposite directions on the same line,tending to compress the object C.opposite directions along parallel lines D.the same direction along parallel lines 查看答案...
The blade motion is assumed to be a linear combination of the first natural modes of blade oscillations with the modal coefficients depending on time. The obtained results show that disturbances in the engine inlet strongly influence the level of unsteady forces acting on the rotor blades. With ...