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izelkay
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If a ball is rolling without slipping up an incline, would the static frictional force also be up the incline?
Oh, ok. The force would need to be in the direction the ball's moving if the ball's moving uphill, but in the opposite direction of motion of the ball if the ball's moving downhill?gneill said:Something has to slow the rotation rate of the ball as its increase in height slows its linear speed (KE traded for PE), otherwise it would start slipping. What direction must the force act (think torque) in order to slow the rotation?
Thank you, that's easier to remember.rcgldr said:For most rolling on incline problems, there are two forces acting on a ball (or cylinder), gravity and friction force (the force the incline exerts on the ball). The friction force from the incline will always oppose gravity, and it doesn't matter if the ball is initially rolling uphill or downhill (or the moment between when the ball is at rest).
Rolling without slipping is a type of motion where an object, such as a wheel or ball, moves forward while simultaneously rotating without any slipping between the object and the surface it is rolling on.
In regular rolling, there is some amount of slipping between the object and the surface it is rolling on. However, in rolling without slipping, there is no slipping at all and the object moves and rotates at the same time.
In order for an object to roll without slipping, there must be a force acting on the object that causes it to rotate and a force acting on the object that causes it to move forward. Additionally, the surface the object is rolling on must be smooth and the object must have a cylindrical or spherical shape.
Yes, rolling without slipping is a common phenomenon observed in everyday life. For example, when a car is moving forward, its wheels are rolling without slipping on the road.
Rolling without slipping has many practical applications, such as in the design of wheels for vehicles and in the study of rotational motion. It also allows for more efficient and stable movement of objects compared to regular rolling.