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A block of mass m is placed on a wedge o...

A block of mass m is placed on a wedge of mass M. Coefficient between then is `mu lt cot theta `. The wedge is given an acceleration to its left. Find the maximum acceleration at which block apears stationary relative to wedge.

A

`(g( sin theta - mu cos theta ))/( cos theta + mu sin theta)`

B

`(g( sin theta + mu cos theta ))/( cos theta - mu sin theta)`

C

`( g ( cos theta + mu sin theta ))/( cos theta - mu cos theta ) `

D

`( g ( cos theta - mu sin theta ))/( cos theta + mu cos theta ) `

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Knowledge Check

  • A block of mass m is placed on a smooth inclined wedge ABC of inclination theta as shown in the figure. The wedge is given an acceleration a towards the right. The relation between a and theta for the block to remain stationary on the wedge is.

    A
    `a=g tantheta`
    B
    `a=(g)/(cosectheta)`
    C
    `a=costheta`
    D
    `a=(g)/(sintheta)`

  • A block of mass m is placed on a smooth inclined wedge ABC of inclination theta as shown in the figure. The wedge is given an acceleration 'a' towards the right. The relation between a and for the block to remain stationary on the wedge is:

    A
    `a = g cos theta`
    B
    `a = g/(sin theta)`
    C
    `a = g/( "cosec"theta)`
    D
    `a = g tan theta`

  • A block of mass m resting on a wedge of angle theta as shown in the figure. The wedge is given an acceleration a. What is the minimum value of a so that the mass m falls freely ?

    A
    g
    B
    `gcostheta`
    C
    `gcottheta`
    D
    `g tan theta`

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