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A block of mass 5kg is placed on a rough horizontal surface of a moving compartment .It is seen by an observer sitting inside the compartment ,that A force of 10N is res in horizontal direction to move the box in a direction parallel to the motion of compartment while a force of 20N is res in horizontal direction to move the box in opposite direction .Find the coefficient of friction bet the surface of the block and the surface.
A block of mass 5kg is placed on a rough horizontal surface of a moving compartment .It is seen by an observer sitting inside the compartment ,that A force of 10N is res in horizontal direction to move the box in a direction parallel to the motion of compartment while a force of 20N is res in horizontal direction to move the box in opposite direction .Find the coefficient of friction bet the surface of the block and the surface.

```
2 years ago

Himanshu Rathour
119 Points
```							If we draw fbd of block then there are 4 forces acting on it1)gravity (weight) 2)friction3)Normal reaction of ground4)psuedo force due to acclerating cartWeight of bolck=mg=50Normal reaction=50We know that psuedo force acts in the direction opposite to direction of motion of accelerating bodyThus, here psuedo force=20NThus 10=friction bet block and compartment10=uN10=u50u=0.2
```
2 years ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions