THREE CHILDREN ARE AT WORK.ONE IS PUSHING A CHAIR,ANOTHER IS PUSHING THE SOFA,AND THE THIRD ONE IS PUSHING AN EMPTY TROLLEY.WHO IS EXPERIENCING THE MAXIMUM FRICTION ?WHY?
The child pushing the sofa will experience the maximum friction as sofa is the heaviest.
For the same surface the frictional force is higher for heavier object.
For the same surface the frictional force is higher for heavier object.