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A rough wedge of slant length 5 m is kep...

A rough wedge of slant length 5 m is kept as shown in the figure. Find the height h if the block of weight 10N just starts to slip in the given figure. The coefficient of friction between the block & the wedge is . `(1)/sqrt(3)`

A

5 m

B

`5/2`m

C

`(5sqrt(3))/(2)` m

D

`(5)/sqrt(2)`m

Text Solution

Verified by Experts

The correct Answer is:
b
For the block to start slipping m g `sin theta =f`
`f=muN, N =m g cos theta `
m g `sin theta =mu m g cos theta`
`mu=tan theta , (1)/sqrt(3)= tan theta`
`theta =30^(@) sin 30^(@)=(h)/(1), h=5/2 m`
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