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A rectangular wooden block 5xxcm10cmxx10...

A rectangular wooden block `5xxcm10cmxx10cm` in size is kept on a horizontal surface with its face of largeest area on the surface. A minimum force of `1.5N` applied parallel to the surface. Sets the block in sliding motion along the surface. If the block is now kept with its face of smaller area in contant with the surface, the minimum force applied parallel to the surface, to set the block in motion, is.

A

greater than `1.5N`

B

less than `1.5N`

C

equal `1.5N`

D

may be greater of less than `1.5N`

Text Solution

Verified by Experts

The correct Answer is:
C

force of friction is independent of the area of contact.
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Knowledge Check

  • A rectangular wooden block 5 cm xx 10 cm xx 10 cm in size is kept on a horizontal surface with its face of largest area on the surface. A minimum force of 1.5 N applied parallel to the surface sets the block in sliding motion along the surface. If the block is now kept with its face of smaller area in contact with the surface, the minimum force applied parallel to the surface, to set the block in motion, is

    A
    greater than 1.5 N
    B
    less than 1.5 N
    C
    equal to 1.5 N
    D
    may be greater or less than 1.5 N
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    less than `10 N`
    B
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    C
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    D
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