Four children were asked to arrange forces due to rolling, static and sliding frictions in a decreasing order. Their arrangements are given below. Choose the correct arrangement.
- rolling, static, sliding
- rolling, sliding, static
- static, sliding, rolling
- sliding, static, rolling
The Correct Option is C
Solution and Explanation
The correct arrangement of forces due to rolling, static, and sliding frictions in decreasing order is static, sliding and rolling.
Here's an explanation:
Static Friction: Static friction is the force that opposes the initiation of motion. It comes into play when an object is at rest and you apply a force to try to move it. Static friction is usually stronger than both sliding and rolling frictions.
Sliding Friction: Sliding friction occurs when two surfaces slide past each other. Once an object overcomes static friction and starts moving, sliding friction comes into play. It's generally weaker than static friction but stronger than rolling friction.
Rolling Friction: Rolling friction is the force that resists the motion of a rolling object. It is typically the weakest of the three types of frictions mentioned. When an object rolls without slipping, the rolling friction is generally less than sliding friction.
Therefore, The Correct option is (C): Static, sliding, rolling.
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Concepts Used:
Friction
Friction is defined as the resistance offered by the surfaces that are in contact when they move past each other.
Types of Friction
There are four categories of Friction- static friction, sliding friction, rolling friction, and fluid friction.
Sliding Friction
In Sliding Friction, the weight of the sliding object calculates the amount of sliding friction present between the two objects. The sliding friction is supposed to be greater as the pressure exerted by the heavy object on the surface it slides over is comparably more.
Rolling Friction
Friction between a circular object and the surface is called as Rolling Friction. It is required to overcome sliding friction is more than the force required to overcome the rolling friction.
Static Friction
Friction that keeps an object at rest without initiating any relative motion between the body and the surface is termed as Static Friction. For example, a parked car resting on the hill, a hanging towel on the rack. The maximum force of static friction is directly proportional to the normal force.
Fluid Friction
Fluid Friction is the kind of friction that is exerted by the fluid on the object that is moving through a fluid.