To Measure the Force of Limiting Friction for Rolling of Roller on a Horizontal Plane

Physics Lab ManualNCERT Solutions Class 11 Physics Sample Papers
Aim  
To measure the force of limiting friction for rolling of a roller on a horizontal plane.

Apparatus  
Same as in Experiment 9 and lead shots as rollers.

Theory  
Rolling friction. It is the friction acting on a body in rolling motion.
Force of rolling friction. It is the least force required to make a body start rolling over a surface.

Diagram
to-measure-the-force-of-limiting-friction-for-rolling-of-roller-on-a-horizontal-plane-1

Procedure  
1. Same as in Experiment 9. Spread lead shots over the table top to form a single layer.
2. Weigh the wooden block and put it over the layer of lead shots. Steps from 3 to 12 are same as in Experiment 9.

Observations  
Same as in Experiment 9.

Calculations  
Same as in Experiment 9.

Result  
Same as in Experiment 9.

Precautions  
Same as in Experiment 9.

Sources of error  
Same as in Experiment 9.