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An object is free to move on a table, except that there is a constant frictional force f that opposes the motion of the object when it moves. If a force of 10.0 N pulls the objects, the acceleration is 2.0 m/s 2 . If a force of 20.0 N pulls the object, the acceleration is 6.0 m/s 2 . (A) What is the force of friction f ? (a) 1.0N (b) 3.33 N. (c) 5.0 N. (d) 10.0 N. (B) what is the mass of the object? (a) 0.40 kg. (b) 2.5 kg. (c) 3.33 kg. (d) 5.0 kg.

```
5 years ago

Deepak Patra
471 Points
```							a) The correct option is (C) 5.0 N.The net force (Fnet) acting on the object is equal to the applied force (F) minus the frictional force (f) which opposes the motion of the object when it moves.
```
5 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