Home
Class 11
PHYSICS
A body is sliding down an inclined plane...

A body is sliding down an inclined plane forming an angle `30^(@)` with the horizontal. If the coefficient of friction is 0.3 then acceleration of the body is

A

`1.25 ms^(-2)`

B

`2.35 ms^(-2)`

C

`3.4 ms^(-2)`

D

`4.9 ms^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`a=g(sin theta-mu_(k)cos theta)`
Promotional Banner

Topper's Solved these Questions

  • LAW OF MOTION

    NARAYNA|Exercise EXERCISE - I (H.W)(CIRCULAR MOTION)|3 Videos

  • LAW OF MOTION

    NARAYNA|Exercise EXERCISE - II (C.W)(NEWTON.S LAWS OF MOTION)|12 Videos

  • LAW OF MOTION

    NARAYNA|Exercise EXERCISE - I (H.W)(MOTION ON A HORIZONTAL ROUGH SURFACE)|6 Videos

  • KINETIC THEORY OF GASES

    NARAYNA|Exercise LEVEL-III(C.W)|52 Videos

  • MATHEMATICAL REVIEW & PHYSICAL WORLD

    NARAYNA|Exercise C.U.Q|13 Videos

Similar Questions

Explore conceptually related problems

A body is sliding down an inclined plane forming an angle 30^(@) with the horizantal. If the coefficient of friction is 0.3 then acceleration of the body is

A body of mass m slides down an inclined plane making an angle of 45^(@) with the horizontal. If the coefficient of friction between the body and the plane be 0.3, the acceleration of the body is approximately equal to :

A body of mass ‘m’ is launched up on a rough inclined plane making an angle of 30^(@) with the horizontal. The coefficient of friction between the body and plane is (sqrt(x))/(5) if the time of ascent is half of the time of descent. The value of x is ___________.

A body of mass 10 kg is lying on a rough plane inclined at an angle of 30^(@) to the horizontal and the coefficient of friction is 0.5. the minimum force required to pull the body up the plane is

A body of mass 5xx10^(-3) kg is launched upon a rough inclined plane making an angle of 30^(@) with the horizontal. Obtain the coefficient of friction between the body and the plane if the time of ascent is half of the time of descent.

A block rests on an inclined plane that makes an angle  with the horizontal, if the coefficient of sliding friction is 0.50 and that of static friction is 0.75, the time required to slide the block 4 m along the inclined plane is -

A block slides down an incline of angle 30^(@) with an acceleration of g//4 Find the coefficient of kinetic friction .

A body is moving down a long inclined plane in inclination 45^(@) with horizontal. The coefficient of friction between the body and the plane varies as mu=x//2 , where x is the distance moved down the plane. Initially x=0 & v=0 .

Knowledge Check

  • A body is sliding down an inclined plane forming an angle 30^(@) with the horizantal. If the coefficient of friction is 0.3 then acceleration of the body is

    A
    `1.25.ms^(-2)`
    B
    `2.35 ms^(-2)`
    C
    `3.4ms^(-2)`
    D
    `4.9ms^(-2)`

  • A body of mass m slides down an inclined plane making an angle of 45^(@) with the horizontal. If the coefficient of friction between the body and the plane be 0.3, the acceleration of the body is approximately equal to :

    A
    0.22 g
    B
    0.30 g
    C
    0.49 g
    D
    0.70 g

  • A body of mass 10 kg is lying on a rough plane inclined at an angle of 30^(@) to the horizontal and the coefficient of friction is 0.5. the minimum force required to pull the body up the plane is

    A
    914 N
    B
    91.4 N
    C
    9.14 N
    D
    0.914 N