Question

29. A body needs a force F, just to start motion on a surface, a force F2 to continue its motion and a force Fz to roll on the surface. What is (i) the static friction (ii) sliding friction and (iii) rolling friction ? State whether F, is equal, less than or greater than (i) F, and (ii) F3.​

Answer 1

Explanation:

1. F

1

= Static friction

2. F

2

= Sliding friction

3. F

3

= Rolling friction

F

1

>F

2

>F

3

F

2

is less than F

1

but greater than F

3

.

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Answer 2

Answer:

A body needs a force F

just to start motion on a surface, a force F

to continue its motion and a force F

to roll on the surface.

1. the static friction

2. sliding friction and

3. rolling friction? State whether F

is equal, less than or greater than (1)F

and (2)F

Explanation:

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