1.3, draw an arrow to represent the frictional force acting on the tyre against the road.[1] 相关知识点: 试题来源: 解析 1aFrom 0 to 2s, car has zero speed/not moving/stationary.From 2 to 16s, the car has constant acceleration.1bDistance= % x (8+22)x 50=750m1ci0N1cii...
What are the forces acting on a racing car while it slows down around a turn? What are the forces acting on a racing car when it is just starting to move? � 1.����� A 130-pound woman is running at 8 mph. She runs into a turning car and her moveme...
In summary, a train engine of mass ##m## is moving at a constant speed ##v## around a circular curve of radius ##R##. To understand the forces acting on the train, a free body/force diagram should be drawn from the perspective of a cross section of the wheel and rail. ...
A constant speed joint has an outer part (1), an inner part (2), a cage (3) and ball bearings (4) transmitting torque between the outer (1) and inner parts (2). The outer (2) and inner (2) parts have different types of ball races, namely first (10) and second (11), and ...
In the equilibrium of forces, the net force acting on the system becomes zero and the object will remain at rest. In the equilibrium condition, the sum of the horizontal forces acting on the system will be equal to zero and so as ...
A car was initially at rest at the origin. It started to accelerate in a straight line as a result of a force acting on it, given byFc=KtF_{c}=KtFc=Kt. If the mass of the car ismcm_{c}mc, find as a function of time its velocity...
When there are no forces acting, or forces acting on an object are balanced Object may be stationary or moving at a constant velocity Why is force a vector quantity? It has magnitude and direction When an object is moving at a constant speed in a straight line There is no resultant force...
For instance, consider a skydiver falling through air under the influence of gravity. The two forces acting on him are the force of gravity and the drag force (ignoring the buoyant force). The downward force of gravity remains constant regardless of the velocity at which the person is moving...
The other force acting on you is acceleration. When you are riding in a coaster car that is traveling at a constant speed, you only feel the downward force of gravity. But as the car speeds up or slows down, you feel pressed against your seat or the restraining bar. You feel this for...
Name two examples of forces that could speed an object up. What is the unbalanced force acting on a moving car with a constant velocity of 25 m/s (56 mi/h)? A force of 5, N causes the displacement of an object by 3, m in the direction in which the force acts. How mu...