力是束缚矢量是因为力需要考虑作用点，而自由向量是不需要考虑起点的！
解析 = 36 The displacement vector is D= (PQ)=2,5,2, so by Equation 12, the work done is(split) W&= F⋅ D=3,4,5⋅ 2,5,2\&=6+20+10=36(split)If the unit of length is meters and the magnitude of the force is measured in newtons, then the work done is 36 J....
1 Which is a vector quantity?(1) electric charge(2) electric field strength(3) electric potential difference(4) electric resistance5 A machine launches a tennis ball at an angle of25° above the horizontal at a speed of 14 metersper second.The ball returns to level ground.Which combination...
Using the terms of the force-vector theory, the hip thrust is a “horizontal” exercise, and thus should produce a greater improvement in horizontal jumping performance than vertical jumping performance. The aim of this study was thus to investigate whether or not there are differences in ...
forceForce vector in world coordinates. modeType of force to apply. Description Adds a force to theRigidbody. Force is applied continuously along the direction of theforcevector. Specifying theForceModemodeallows the type of force to be changed to an Acceleration, Impulse or Velocity Change. ...
Work is a scalar quantity, even though it's calculated by using two vector quantities (force and displacement). A、正确 B、错误
drag_accum = Vector2(); gui.drag_attempted = false; } } DEV_ASSERT(gui.mouse_focus); mb = mb->xformed_by(Transform2D()); // Make a copy of the event. Point2 pos = gui.mouse_focus->get_global_transform_with_canvas().affine_inverse().xform(mpos); This DEV_ASSERT implies ...
void Start() { // Create a Force Field var go = new GameObject("ForceField", typeof(ParticleSystemForceField)); go.transform.position = new Vector3(0, 2, 0); go.transform.rotation = Quaternion.Euler(new Vector3(90.0f, 0.0f, 0.0f)); m_ForceField = go.GetComponent<ParticleSystemForce...
- vec_out: output vector. Its shape is [nframes, nloc, 3]. """ nframes, nloc, _ = inputs.size() inputs = torch.concat([inputs, atype_tebd], dim=-1) if atype_tebd is not None: inputs = torch.concat([inputs, atype_tebd], dim=-1) vec_out = self.filter_layers[0]...
百度试题 题目For any coplanar force system, as long as its principal vector is not equal to zero, the force system can be reduced to one single force.? 正确错误 相关知识点: 试题来源: 解析 正确 反馈 收藏